diff --git a/db/__init__.py b/db/__init__.py
index 8cab4a08..9d49d31f 100644
--- a/db/__init__.py
+++ b/db/__init__.py
@@ -78,6 +78,17 @@ from .custom_events.get_custom_event import get_custom_event
 from .custom_events.create_custom_event import create_custom_event
 from .custom_events.update_custom_event import update_custom_event
 
+from .quests.constants import (
+    QUEST_STATUS_CHOICES, QUEST_STATUS_LABELS, QUEST_RESULT_CHOICES, QUEST_RESULT_LABELS, QUEST_SPEAKER_CHOICES,
+)
+from .quests.list_quests import list_quests
+from .quests.get_quest import get_quest
+from .quests.create_quest import create_quest
+from .quests.update_quest import update_quest
+from .quests.delete_quest import delete_quest
+from .quests.set_quest_dialogues import set_quest_dialogues
+from .quests.sanitize_quest_dialogues import sanitize_quest_dialogues
+
 __all__ = [
     "PROJECTS_DIR", "FIELD_TYPES", "GLOBAL_VARIABLE_TYPES", "PLAYER_SHARED",
     "SCORE_STATUS_CHOICES", "SCORE_STATUS_LABELS", "get_score", "set_score_value", "set_status",
@@ -95,4 +106,7 @@ __all__ = [
     "update_global_variable_value", "update_global_variable", "delete_global_variable",
     "delete_global_variable_by_id",
     "list_custom_events", "get_custom_event", "create_custom_event", "update_custom_event",
+    "QUEST_STATUS_CHOICES", "QUEST_STATUS_LABELS", "QUEST_RESULT_CHOICES", "QUEST_RESULT_LABELS", "QUEST_SPEAKER_CHOICES",
+    "list_quests", "get_quest", "create_quest", "update_quest", "delete_quest",
+    "set_quest_dialogues", "sanitize_quest_dialogues",
 ]
diff --git a/db/quests/constants.py b/db/quests/constants.py
new file mode 100644
index 00000000..ca54a481
--- /dev/null
+++ b/db/quests/constants.py
@@ -0,0 +1,5 @@
+QUEST_STATUS_CHOICES = ["nouvelle", "en_cours", "terminee"]
+QUEST_STATUS_LABELS = {"nouvelle": "Nouvelle", "en_cours": "En cours", "terminee": "Terminée"}
+QUEST_RESULT_CHOICES = ["reussi", "echoue"]
+QUEST_RESULT_LABELS = {"reussi": "Réussi", "echoue": "Échoué"}
+QUEST_SPEAKER_CHOICES = ["joueur", "pnj"]
diff --git a/db/quests/create_quest.py b/db/quests/create_quest.py
new file mode 100644
index 00000000..83522dc3
--- /dev/null
+++ b/db/quests/create_quest.py
@@ -0,0 +1,18 @@
+from ..connection import connect
+from .ensure_quests_schema import ensure_quests_schema
+from .get_quest import get_quest
+
+
+def create_quest(slug, title="Nouvelle quête"):
+    """Titre par défaut plutôt qu'un refus — créée d'un clic depuis la
+    liste (voir templates/quests.html) ou depuis l'assistant "+ Action"
+    de l'éditeur de collision (voir collision-rules-editor.js), avant
+    même que l'auteur ait choisi un titre."""
+    ensure_quests_schema(slug)
+    title = (title or "").strip() or "Nouvelle quête"
+    conn = connect(slug)
+    conn.execute("INSERT INTO _quests (title) VALUES (?)", (title,))
+    new_id = conn.execute("SELECT last_insert_rowid() AS id").fetchone()["id"]
+    conn.commit()
+    conn.close()
+    return get_quest(slug, new_id)
diff --git a/db/quests/delete_quest.py b/db/quests/delete_quest.py
new file mode 100644
index 00000000..80e19b75
--- /dev/null
+++ b/db/quests/delete_quest.py
@@ -0,0 +1,10 @@
+from ..connection import connect
+from .ensure_quests_schema import ensure_quests_schema
+
+
+def delete_quest(slug, quest_id):
+    ensure_quests_schema(slug)
+    conn = connect(slug)
+    conn.execute("DELETE FROM _quests WHERE id = ?", (quest_id,))
+    conn.commit()
+    conn.close()
diff --git a/db/quests/ensure_quests_schema.py b/db/quests/ensure_quests_schema.py
new file mode 100644
index 00000000..8013cd81
--- /dev/null
+++ b/db/quests/ensure_quests_schema.py
@@ -0,0 +1,29 @@
+from ..connection import connect
+
+
+def ensure_quests_schema(slug):
+    """Migration légère (même principe que ensure_custom_events_schema.py) :
+    crée _quests si absente. Une quête vit pour TOUT le jeu (pas par écran),
+    référencée par id technique depuis l'action "quete" d'une règle de
+    collision (voir screens/rendering/collision_rules.py, quete_id). Les
+    dialogues (voir static/js/quests/quest-editor.js — 3 colonnes
+    nouvelle/en_cours/terminee) sont stockés en JSON plutôt qu'une table à
+    part : jamais interrogés/filtrés côté SQL, toujours lus/réécrits en
+    bloc pour UNE quête à la fois (même convention que _scene_objects.attributes)."""
+    conn = connect(slug)
+    conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS _quests (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            title TEXT NOT NULL,
+            objectif TEXT DEFAULT '',
+            recompense_score INTEGER DEFAULT 0,
+            status TEXT DEFAULT 'nouvelle',
+            resultat TEXT,
+            dialogues_json TEXT DEFAULT '{}',
+            created_at TEXT DEFAULT CURRENT_TIMESTAMP
+        );
+        """
+    )
+    conn.commit()
+    conn.close()
diff --git a/db/quests/get_quest.py b/db/quests/get_quest.py
new file mode 100644
index 00000000..634d6e70
--- /dev/null
+++ b/db/quests/get_quest.py
@@ -0,0 +1,11 @@
+from ..connection import connect
+from .ensure_quests_schema import ensure_quests_schema
+from .list_quests import _row_to_quest
+
+
+def get_quest(slug, quest_id):
+    ensure_quests_schema(slug)
+    conn = connect(slug)
+    row = conn.execute("SELECT * FROM _quests WHERE id = ?", (quest_id,)).fetchone()
+    conn.close()
+    return _row_to_quest(row) if row else None
diff --git a/db/quests/list_quests.py b/db/quests/list_quests.py
new file mode 100644
index 00000000..734a160a
--- /dev/null
+++ b/db/quests/list_quests.py
@@ -0,0 +1,22 @@
+import json
+
+from ..connection import connect
+from .ensure_quests_schema import ensure_quests_schema
+
+
+def _row_to_quest(row):
+    quest = dict(row)
+    try:
+        quest["dialogues"] = json.loads(quest.pop("dialogues_json") or "{}")
+    except (TypeError, ValueError):
+        quest["dialogues"] = {}
+        quest.pop("dialogues_json", None)
+    return quest
+
+
+def list_quests(slug):
+    ensure_quests_schema(slug)
+    conn = connect(slug)
+    rows = conn.execute("SELECT * FROM _quests ORDER BY created_at DESC, id DESC").fetchall()
+    conn.close()
+    return [_row_to_quest(r) for r in rows]
diff --git a/db/quests/sanitize_quest_dialogues.py b/db/quests/sanitize_quest_dialogues.py
new file mode 100644
index 00000000..dfaef61d
--- /dev/null
+++ b/db/quests/sanitize_quest_dialogues.py
@@ -0,0 +1,30 @@
+from .constants import QUEST_STATUS_CHOICES, QUEST_SPEAKER_CHOICES
+
+_MAX_LINES_PER_COLUMN = 200
+
+
+def sanitize_quest_dialogues(raw_dialogues):
+    """Une réplique = {speaker: 'joueur'|'pnj', text: '...'} — une colonne
+    par statut de quête (voir QUEST_STATUS_CHOICES), la même forme que
+    resolve_collision_rules.sanitize_collision_rules : rejette tout
+    élément invalide plutôt que de lever, ne garde jamais un texte vide."""
+    result = {status: [] for status in QUEST_STATUS_CHOICES}
+    if not isinstance(raw_dialogues, dict):
+        return result
+    for status in QUEST_STATUS_CHOICES:
+        raw_lines = raw_dialogues.get(status)
+        if not isinstance(raw_lines, list):
+            continue
+        cleaned = []
+        for raw_line in raw_lines[:_MAX_LINES_PER_COLUMN]:
+            if not isinstance(raw_line, dict):
+                continue
+            speaker = raw_line.get("speaker")
+            text = raw_line.get("text")
+            if speaker not in QUEST_SPEAKER_CHOICES:
+                continue
+            if not isinstance(text, str) or not text.strip():
+                continue
+            cleaned.append({"speaker": speaker, "text": text.strip()})
+        result[status] = cleaned
+    return result
diff --git a/db/quests/set_quest_dialogues.py b/db/quests/set_quest_dialogues.py
new file mode 100644
index 00000000..62a4ed65
--- /dev/null
+++ b/db/quests/set_quest_dialogues.py
@@ -0,0 +1,21 @@
+import json
+
+from ..connection import connect
+from .ensure_quests_schema import ensure_quests_schema
+from .get_quest import get_quest
+from .sanitize_quest_dialogues import sanitize_quest_dialogues
+
+
+def set_quest_dialogues(slug, quest_id, raw_dialogues):
+    """Toujours les 3 colonnes ENTIÈRES (nouvelle/en_cours/terminee) en un
+    bloc — même convention "replace-all" que set_scene_object_collision_rules.py,
+    jamais une réplique isolée."""
+    ensure_quests_schema(slug)
+    if get_quest(slug, quest_id) is None:
+        return None
+    dialogues = sanitize_quest_dialogues(raw_dialogues)
+    conn = connect(slug)
+    conn.execute("UPDATE _quests SET dialogues_json = ? WHERE id = ?", (json.dumps(dialogues), quest_id))
+    conn.commit()
+    conn.close()
+    return dialogues
diff --git a/db/quests/update_quest.py b/db/quests/update_quest.py
new file mode 100644
index 00000000..f8fec251
--- /dev/null
+++ b/db/quests/update_quest.py
@@ -0,0 +1,42 @@
+from ..connection import connect
+from .constants import QUEST_STATUS_CHOICES, QUEST_RESULT_CHOICES
+from .ensure_quests_schema import ensure_quests_schema
+from .get_quest import get_quest
+
+
+def update_quest(slug, quest_id, fields):
+    """Met à jour uniquement les clés reconnues et valides de `fields` —
+    ignore tout le reste plutôt que de lever, même esprit que
+    sanitize_collision_rules (jamais confiance dans ce qu'envoie le
+    client). title vide => ignoré (garde l'ancien plutôt qu'un titre vide)."""
+    ensure_quests_schema(slug)
+    if get_quest(slug, quest_id) is None:
+        return None
+    updates = {}
+    if "title" in fields:
+        title = (fields["title"] or "").strip()
+        if title:
+            updates["title"] = title
+    if "objectif" in fields:
+        updates["objectif"] = (fields["objectif"] or "").strip()
+    if "recompense_score" in fields:
+        try:
+            updates["recompense_score"] = int(fields["recompense_score"])
+        except (TypeError, ValueError):
+            pass
+    if "status" in fields and fields["status"] in QUEST_STATUS_CHOICES:
+        updates["status"] = fields["status"]
+    if "resultat" in fields:
+        resultat = fields["resultat"]
+        if resultat in QUEST_RESULT_CHOICES:
+            updates["resultat"] = resultat
+        elif resultat is None:
+            updates["resultat"] = None
+    if not updates:
+        return get_quest(slug, quest_id)
+    conn = connect(slug)
+    set_clause = ", ".join(f"{key} = ?" for key in updates)
+    conn.execute(f"UPDATE _quests SET {set_clause} WHERE id = ?", (*updates.values(), quest_id))
+    conn.commit()
+    conn.close()
+    return get_quest(slug, quest_id)
diff --git a/routes/__init__.py b/routes/__init__.py
index 13e82f50..0a52327b 100644
--- a/routes/__init__.py
+++ b/routes/__init__.py
@@ -1 +1 @@
-from . import auth, games, objects, screens, elements, legacy_actions, flow, element_types, uploads, play, animations, global_vars, publish, custom_events, flow_blocks, scenes, onboarding
+from . import auth, games, objects, screens, elements, legacy_actions, flow, element_types, uploads, play, animations, global_vars, publish, custom_events, flow_blocks, scenes, onboarding, quests
diff --git a/routes/quests/__init__.py b/routes/quests/__init__.py
new file mode 100644
index 00000000..0bbd7d75
--- /dev/null
+++ b/routes/quests/__init__.py
@@ -0,0 +1 @@
+from . import quests_view, quests_list_json, quest_new, quest_update, quest_delete, quest_dialogues
diff --git a/routes/quests/quest_delete.py b/routes/quests/quest_delete.py
new file mode 100644
index 00000000..c726589d
--- /dev/null
+++ b/routes/quests/quest_delete.py
@@ -0,0 +1,11 @@
+from flask import jsonify
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests/<int:quest_id>/delete", methods=["POST"])
+def quest_delete(slug, quest_id):
+    db.delete_quest(slug, quest_id)
+    return jsonify({"ok": True})
diff --git a/routes/quests/quest_dialogues.py b/routes/quests/quest_dialogues.py
new file mode 100644
index 00000000..2f318de1
--- /dev/null
+++ b/routes/quests/quest_dialogues.py
@@ -0,0 +1,17 @@
+from flask import jsonify, request
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests/<int:quest_id>/dialogues", methods=["POST"])
+def quest_dialogues(slug, quest_id):
+    """Toujours les 3 colonnes ENTIÈRES (voir db.set_quest_dialogues) —
+    le client (renderQuestDialogueColumns, quest-editor.js) poste l'objet
+    complet à chaque modification plutôt qu'une réplique isolée."""
+    body = request.get_json(silent=True) or {}
+    dialogues = db.set_quest_dialogues(slug, quest_id, body.get("dialogues"))
+    if dialogues is None:
+        return jsonify({"error": "quête introuvable"}), 404
+    return jsonify({"dialogues": dialogues})
diff --git a/routes/quests/quest_new.py b/routes/quests/quest_new.py
new file mode 100644
index 00000000..a7b33ebc
--- /dev/null
+++ b/routes/quests/quest_new.py
@@ -0,0 +1,12 @@
+from flask import jsonify, request
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests/new", methods=["POST"])
+def quest_new(slug):
+    body = request.get_json(silent=True) or {}
+    quest = db.create_quest(slug, body.get("title"))
+    return jsonify({"quest": quest})
diff --git a/routes/quests/quest_update.py b/routes/quests/quest_update.py
new file mode 100644
index 00000000..2c922c82
--- /dev/null
+++ b/routes/quests/quest_update.py
@@ -0,0 +1,14 @@
+from flask import jsonify, request
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests/<int:quest_id>", methods=["POST"])
+def quest_update(slug, quest_id):
+    body = request.get_json(silent=True) or {}
+    quest = db.update_quest(slug, quest_id, body)
+    if quest is None:
+        return jsonify({"error": "quête introuvable"}), 404
+    return jsonify({"quest": quest})
diff --git a/routes/quests/quests_list_json.py b/routes/quests/quests_list_json.py
new file mode 100644
index 00000000..94dbed50
--- /dev/null
+++ b/routes/quests/quests_list_json.py
@@ -0,0 +1,14 @@
+from flask import jsonify
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests/list.json")
+def quests_list_json(slug):
+    """Utilisé par l'assistant "+ Action" de l'éditeur de collision (voir
+    collision-rules-editor.js) pour lister les quêtes existantes sans
+    quitter la modale déjà ouverte — même contenu que quests_view, en JSON
+    seul plutôt qu'une page complète."""
+    return jsonify({"quests": db.list_quests(slug)})
diff --git a/routes/quests/quests_view.py b/routes/quests/quests_view.py
new file mode 100644
index 00000000..f9afc130
--- /dev/null
+++ b/routes/quests/quests_view.py
@@ -0,0 +1,20 @@
+import json
+
+from flask import render_template
+
+import db
+
+from core.flask_app import app
+
+
+@app.route("/game/<slug>/quests")
+def quests_view(slug):
+    """Éditeur de quêtes (voir db/quests/) — page dédiée game-wide, dans le
+    même esprit que game_dashboard.html : une liste de cartes + un bouton
+    "+ Nouvelle quête" au-dessus, chaque carte ouvrant une modale avec
+    l'arbre de dialogue (static/js/quests/quest-editor.js — même module
+    JS que celui rendu depuis l'assistant "+ Action" de l'éditeur de
+    collision, voir collision-rules-editor.js)."""
+    game = db.game_meta(slug)
+    quests = db.list_quests(slug)
+    return render_template("quests.html", game=game, quests_json=json.dumps(quests))
diff --git a/routes/scenes/scene_edit_view.py b/routes/scenes/scene_edit_view.py
index c8fb5c11..75d1fa0d 100644
--- a/routes/scenes/scene_edit_view.py
+++ b/routes/scenes/scene_edit_view.py
@@ -128,4 +128,10 @@ def render_scene_edit(slug, screen_id, game):
         collision_rule_objects_json=json.dumps(collision_rule_objects),
         collision_action_types=screens.ACTION_TYPES, collision_trigger_types=screens.TRIGGER_TYPES,
         collision_default_perimetre_px=screens.DEFAULT_PERIMETRE_PX,
+        # Éditeur de quêtes (voir db/quests/) : préchargées ici pour que
+        # collisionRuleActionSummary (collision-rules-editor.js) affiche
+        # tout de suite le TITRE de la quête référencée par une règle
+        # existante, sans attendre l'ouverture de l'assistant "+ Action"
+        # (seul moment où questPickerHtml irait la chercher sinon).
+        quests_json=json.dumps(db.list_quests(slug)),
     )
diff --git a/screens/rendering/collision_rules.py b/screens/rendering/collision_rules.py
index 738e2ebc..330f60a2 100644
--- a/screens/rendering/collision_rules.py
+++ b/screens/rendering/collision_rules.py
@@ -11,9 +11,13 @@ import json
 # joueur entre dans un rayon de `perimetre_px` pixels autour de l'objet).
 #
 # Action (une seule par règle) :
-#   - "quete"     : quete_id (référence libre — l'éditeur de quête lui-même
-#                   reste à construire, cette action ne fait QUE mémoriser
-#                   la référence pour l'instant).
+#   - "quete"     : quete_id (id technique d'une quête — voir db/quests/,
+#                   choisie/créée via l'assistant "+ Action" qui ouvre
+#                   directement l'éditeur de quête, static/js/quests/
+#                   quest-editor.js) — une quête inexistante/supprimée
+#                   depuis reste une référence orpheline plutôt qu'une
+#                   contrainte SQL, comme le reste de ce moteur (voir
+#                   evenement_id ci-dessous, même principe).
 #   - "attaque"   : joue la pose "attack" du personnage si disponible (voir
 #                   personnage-controller.js) — pas de système de combat
 #                   (dégâts/PV...) pour l'instant, effet visuel seul.
@@ -45,10 +49,10 @@ def _sanitize_action(raw_action, depth=1):
         return None  # un seul niveau d'imbrication autorisé
     action = {"type": action_type}
     if action_type == "quete":
-        quete_id = raw_action.get("quete_id")
-        if not (isinstance(quete_id, str) and quete_id.strip()):
+        try:
+            action["quete_id"] = int(raw_action.get("quete_id"))
+        except (TypeError, ValueError):
             return None
-        action["quete_id"] = quete_id.strip()
     elif action_type == "evenement":
         try:
             action["evenement_id"] = int(raw_action.get("evenement_id"))
diff --git a/static/js/quests/quest-editor.js b/static/js/quests/quest-editor.js
new file mode 100644
index 00000000..5b820af9
--- /dev/null
+++ b/static/js/quests/quest-editor.js
@@ -0,0 +1,301 @@
+// ---------- Éditeur de quêtes ----------
+// Module partagé entre templates/quests.html (page dédiée : liste de
+// cartes + "+ Nouvelle quête") et static/js/scenes/collision-rules-editor.js
+// (l'assistant "+ Action" de l'éditeur de collision ouvre CETTE MÊME
+// modale de dialogue quand l'auteur choisit "Déclencher une quête",
+// plutôt qu'un simple champ texte pour un id). La modale (arbre de
+// dialogue) est créée dynamiquement (ensureQuestDialogueModal) plutôt que
+// dupliquée dans deux templates.
+//
+// Une quête (voir db/quests/) : id, title, objectif, recompense_score,
+// status (nouvelle/en_cours/terminee — statut COURANT, informatif),
+// resultat (reussi/echoue), dialogues (une liste de répliques PAR
+// STATUT — 3 colonnes dans l'éditeur : quel dialogue jouer selon l'état
+// de la quête au moment où le joueur parle au PNJ).
+
+var QUEST_STATUS_LABELS = { nouvelle: 'Nouvelle', en_cours: 'En cours', terminee: 'Terminée' };
+var QUEST_RESULT_LABELS = { reussi: '✅ Réussi', echoue: '❌ Échoué' };
+var QUEST_STATUS_ORDER = ['nouvelle', 'en_cours', 'terminee'];
+
+// Quêtes connues côté client — préremplies par QUESTS_JSON (quests.html)
+// si présent, sinon vide tant qu'on n'a pas encore fetch (contexte
+// éditeur de collision, voir questPickerEnsureLoaded).
+var QUESTS = (typeof QUESTS_JSON !== 'undefined') ? QUESTS_JSON : [];
+
+function questById(questId) {
+  return QUESTS.find(function (q) { return q.id === questId; });
+}
+
+function questCardHtml(quest, i) {
+  var resultatHtml = quest.resultat ? '<span class="questPill questPill-resultat">' + QUEST_RESULT_LABELS[quest.resultat] + '</span>' : '';
+  return (
+    '<div class="questCard" style="animation-delay:' + (i * 50) + 'ms" onclick="openQuestDialogueModal(' + quest.id + ')">' +
+      '<div class="questCardHeader">' +
+        '<h3 class="questCardTitle">' + (quest.title || '').replace(/</g, '&lt;') + '</h3>' +
+        '<span class="questPill questPill-status questPill-status-' + quest.status + '">' + QUEST_STATUS_LABELS[quest.status] + '</span>' +
+      '</div>' +
+      '<p class="questCardObjectif">' + (quest.objectif ? quest.objectif.replace(/</g, '&lt;') : '<span class="hint">Aucun objectif défini.</span>') + '</p>' +
+      '<div class="questCardFooter">' +
+        '<span class="questPill questPill-score">🏆 +' + (quest.recompense_score || 0) + '</span>' +
+        resultatHtml +
+      '</div>' +
+    '</div>'
+  );
+}
+
+function renderQuestListPage() {
+  var container = document.getElementById('questsGrid');
+  if (!container) return;
+  if (!QUESTS.length) {
+    container.innerHTML = '<p class="hint">Aucune quête pour l\'instant — crée-en une avec le bouton ci-dessus.</p>';
+    return;
+  }
+  container.innerHTML = QUESTS.map(questCardHtml).join('');
+}
+
+function createQuestFromListPage() {
+  fetch('/game/' + GAME_SLUG + '/quests/new', {
+    method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({}),
+  })
+    .then(function (r) { return r.json(); })
+    .then(function (json) {
+      QUESTS.unshift(json.quest);
+      renderQuestListPage();
+      openQuestDialogueModal(json.quest.id);
+    });
+}
+
+// ---------- Modale "arbre de dialogue" ----------
+// Créée une seule fois (au premier appel), réutilisée ensuite — partagée
+// entre la page dédiée et l'assistant "+ Action" de l'éditeur de
+// collision, jamais dupliquée dans les templates.
+var _questModalOnUse = null;
+
+function ensureQuestDialogueModal() {
+  var modal = document.getElementById('questDialogueModal');
+  if (modal) return modal;
+  modal = document.createElement('div');
+  modal.className = 'modal';
+  modal.id = 'questDialogueModal';
+  modal.innerHTML =
+    '<div class="modal-background" onclick="closeQuestDialogueModal()"></div>' +
+    '<div class="modal-content questDialogueModalContent"><div class="box">' +
+      '<div id="questDialogueModalBody"></div>' +
+    '</div></div>';
+  document.body.appendChild(modal);
+  return modal;
+}
+
+// `onUse(quest)` optionnel : posé par collisionWizardChooseAction('quete', ...)
+// pour finaliser la règle de collision avec cette quête, affiche alors un
+// bouton "✓ Utiliser cette quête" épinglé en haut de la modale.
+function openQuestDialogueModal(questId, onUse) {
+  _questModalOnUse = onUse || null;
+  var modal = ensureQuestDialogueModal();
+  modal.classList.add('is-active');
+  renderQuestDialogueModalBody(questId);
+}
+
+function closeQuestDialogueModal() {
+  var modal = document.getElementById('questDialogueModal');
+  if (modal) modal.classList.remove('is-active');
+  _questModalOnUse = null;
+  _questModalCurrentId = null;
+}
+
+function questUseThisQuest(questId) {
+  var quest = questById(questId);
+  if (_questModalOnUse && quest) _questModalOnUse(quest);
+  closeQuestDialogueModal();
+}
+
+function questFieldRowHtml(quest) {
+  return (
+    '<div class="questFieldsGrid">' +
+      '<label class="questField"><span>Titre</span><input type="text" class="input" value="' + (quest.title || '').replace(/"/g, '&quot;') + '" onchange="questUpdateField(' + quest.id + ", 'title', this.value)\"></label>" +
+      '<label class="questField questField-wide"><span>Objectif</span><input type="text" class="input" value="' + (quest.objectif || '').replace(/"/g, '&quot;') + '" onchange="questUpdateField(' + quest.id + ", 'objectif', this.value)\"></label>" +
+      '<label class="questField"><span>Récompense (score)</span><input type="number" class="input" value="' + (quest.recompense_score || 0) + '" onchange="questUpdateField(' + quest.id + ", 'recompense_score', this.value)\"></label>" +
+      '<label class="questField"><span>Statut</span><select class="input" onchange="questUpdateField(' + quest.id + ", 'status', this.value)\">" +
+        QUEST_STATUS_ORDER.map(function (s) { return '<option value="' + s + '"' + (quest.status === s ? ' selected' : '') + '>' + QUEST_STATUS_LABELS[s] + '</option>'; }).join('') +
+      '</select></label>' +
+      '<label class="questField"><span>Résultat</span><select class="input" onchange="questUpdateField(' + quest.id + ", 'resultat', this.value)\">" +
+        '<option value=""' + (!quest.resultat ? ' selected' : '') + '>—</option>' +
+        '<option value="reussi"' + (quest.resultat === 'reussi' ? ' selected' : '') + '>Réussi</option>' +
+        '<option value="echoue"' + (quest.resultat === 'echoue' ? ' selected' : '') + '>Échoué</option>' +
+      '</select></label>' +
+    '</div>'
+  );
+}
+
+function questDialogueBubbleHtml(line, status, index) {
+  return (
+    '<div class="questBubbleRow questBubbleRow-' + line.speaker + '">' +
+      '<div class="questBubble questBubble-' + line.speaker + '">' +
+        '<div class="questBubbleSpeaker" onclick="questToggleSpeaker(\'' + status + '\', ' + index + ')" title="Changer qui parle">' +
+          (line.speaker === 'joueur' ? '🧑 Joueur' : '🗨️ PNJ') +
+        '</div>' +
+        '<textarea class="questBubbleText" rows="1" placeholder="Réplique..." ' +
+          'oninput="this.style.height=\'auto\'; this.style.height=this.scrollHeight+\'px\';" ' +
+          'onchange="questUpdateBubbleText(\'' + status + '\', ' + index + ', this.value)">' + line.text.replace(/</g, '&lt;') + '</textarea>' +
+        '<button type="button" class="questBubbleDelete" title="Supprimer" onclick="questDeleteBubble(\'' + status + '\', ' + index + ')">✕</button>' +
+      '</div>' +
+    '</div>'
+  );
+}
+
+function questDialogueColumnHtml(quest, status) {
+  var lines = (quest.dialogues && quest.dialogues[status]) || [];
+  var bubblesHtml = lines.map(function (line, i) { return questDialogueBubbleHtml(line, status, i); }).join('');
+  return (
+    '<div class="questDialogueColumn">' +
+      '<h4 class="questDialogueColumnTitle">' + QUEST_STATUS_LABELS[status] + '</h4>' +
+      '<div class="questDialogueColumnBubbles" id="questDialogueColumn-' + status + '">' + bubblesHtml + '</div>' +
+      '<button type="button" class="collisionRuleAddBtn questDialogueAddBtn" onclick="questAddBubble(\'' + status + '\')">✚ Réplique</button>' +
+    '</div>'
+  );
+}
+
+var _questModalCurrentId = null;
+
+function renderQuestDialogueModalBody(questId) {
+  var quest = questById(questId);
+  var body = document.getElementById('questDialogueModalBody');
+  if (!quest || !body) return;
+  _questModalCurrentId = questId;
+  var useBtn = _questModalOnUse
+    ? '<button type="button" class="collisionRuleAddBtn" onclick="questUseThisQuest(' + quest.id + ')">✓ Utiliser cette quête</button>'
+    : '';
+  body.innerHTML =
+    '<div class="fieldRow questDialogueModalHeader" style="align-items:center; justify-content:space-between;">' +
+      '<h2 class="title is-5" style="margin:0;">🗺️ ' + (quest.title || '').replace(/</g, '&lt;') + '</h2>' +
+      '<div style="display:flex; gap:8px; align-items:center;">' + useBtn +
+        '<button type="button" class="button is-small" onclick="closeQuestDialogueModal()">✕</button>' +
+      '</div>' +
+    '</div>' +
+    questFieldRowHtml(quest) +
+    '<p class="hint mt-2 mb-2">Dialogue joué selon l\'état de la quête au moment où le joueur parle au PNJ :</p>' +
+    '<div class="questDialogueColumns">' + QUEST_STATUS_ORDER.map(function (s) { return questDialogueColumnHtml(quest, s); }).join('') + '</div>';
+}
+
+function questUpdateField(questId, field, value) {
+  var quest = questById(questId);
+  if (!quest) return;
+  var body = {};
+  body[field] = field === 'recompense_score' ? Number(value) : (value || null);
+  fetch('/game/' + GAME_SLUG + '/quests/' + questId, {
+    method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body),
+  })
+    .then(function (r) { return r.json(); })
+    .then(function (json) {
+      if (!json.quest) return;
+      Object.assign(quest, json.quest);
+      renderQuestListPage();
+      if (document.getElementById('questDialogueModal') && document.getElementById('questDialogueModal').classList.contains('is-active')) {
+        renderQuestDialogueModalBody(questId);
+      }
+    });
+}
+
+// Dialogues : toujours les 3 colonnes ENTIÈRES postées ensemble (voir
+// db/quests/set_quest_dialogues.py) — jamais une réplique isolée.
+function questSaveDialogues(quest) {
+  fetch('/game/' + GAME_SLUG + '/quests/' + quest.id + '/dialogues', {
+    method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ dialogues: quest.dialogues }),
+  })
+    .then(function (r) { return r.json(); })
+    .then(function (json) { if (json.dialogues) quest.dialogues = json.dialogues; });
+}
+
+function questAddBubble(status) {
+  var quest = questById(_currentQuestModalId());
+  if (!quest) return;
+  quest.dialogues = quest.dialogues || {};
+  var lines = quest.dialogues[status] || (quest.dialogues[status] = []);
+  var lastSpeaker = lines.length ? lines[lines.length - 1].speaker : 'pnj';
+  lines.push({ speaker: lastSpeaker === 'pnj' ? 'joueur' : 'pnj', text: '' });
+  renderQuestDialogueModalBody(quest.id);
+  questSaveDialogues(quest);
+}
+
+function questToggleSpeaker(status, index) {
+  var quest = questById(_currentQuestModalId());
+  if (!quest) return;
+  var line = quest.dialogues[status][index];
+  line.speaker = line.speaker === 'joueur' ? 'pnj' : 'joueur';
+  renderQuestDialogueModalBody(quest.id);
+  questSaveDialogues(quest);
+}
+
+function questUpdateBubbleText(status, index, text) {
+  var quest = questById(_currentQuestModalId());
+  if (!quest) return;
+  quest.dialogues[status][index].text = text;
+  questSaveDialogues(quest);
+}
+
+function questDeleteBubble(status, index) {
+  var quest = questById(_currentQuestModalId());
+  if (!quest) return;
+  quest.dialogues[status].splice(index, 1);
+  renderQuestDialogueModalBody(quest.id);
+  questSaveDialogues(quest);
+}
+
+function _currentQuestModalId() {
+  return _questModalCurrentId;
+}
+
+// ---------- Sélecteur de quête (assistant "+ Action" de l'éditeur de collision) ----------
+// Récupère la liste à jour (jamais présente d'avance dans scene_edit.html,
+// contrairement à quests.html) puis affiche des cartes + "+ Nouvelle
+// quête" DANS la modale de collision déjà ouverte (voir
+// renderCollisionWizardActionStep) ; choisir/créer une quête ouvre
+// ENSUITE la modale de dialogue (celle-ci empilée par-dessus), avec un
+// bouton "✓ Utiliser cette quête" qui referme les deux et finalise la
+// règle — exactement le comportement demandé : cliquer "Déclencher une
+// quête" ouvre l'éditeur de quête, pas un simple champ texte.
+function questPickerHtml(quests) {
+  if (!quests.length) {
+    return '<p class="hint mb-2">Aucune quête pour l\'instant.</p>';
+  }
+  return '<div class="collisionWizardChoices">' + quests.map(function (q, i) {
+    return '<button type="button" class="collisionWizardChoice" style="animation-delay:' + (i * 40) + 'ms" onclick="questPickerChoose(' + q.id + ')">' +
+      '<span class="emoji">🗺️</span><span>' + (q.title || '').replace(/</g, '&lt;') + '</span>' +
+    '</button>';
+  }).join('') + '</div>';
+}
+
+var _questPickerOnUse = null;
+
+function renderQuestPickerStep(onUse) {
+  _questPickerOnUse = onUse;
+  var body = collisionWizardBodyEl();
+  body.innerHTML = '<p class="hint mb-2">Quelle quête déclencher ?</p><div id="questPickerList">Chargement…</div>' +
+    '<button type="button" class="collisionRuleAddBtn mt-2" onclick="questPickerCreate()">✚ Nouvelle quête</button>';
+  fetch('/game/' + GAME_SLUG + '/quests/list.json')
+    .then(function (r) { return r.json(); })
+    .then(function (json) {
+      QUESTS = json.quests;
+      var list = document.getElementById('questPickerList');
+      if (list) list.innerHTML = questPickerHtml(QUESTS);
+    });
+}
+
+function questPickerChoose(questId) {
+  openQuestDialogueModal(questId, _questPickerOnUse);
+}
+
+function questPickerCreate() {
+  fetch('/game/' + GAME_SLUG + '/quests/new', {
+    method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({}),
+  })
+    .then(function (r) { return r.json(); })
+    .then(function (json) {
+      QUESTS.unshift(json.quest);
+      openQuestDialogueModal(json.quest.id, _questPickerOnUse);
+    });
+}
+
+document.addEventListener('DOMContentLoaded', function () {
+  if (typeof QUESTS_JSON !== 'undefined') renderQuestListPage();
+});
diff --git a/static/js/scenes/collision-rules-editor.js b/static/js/scenes/collision-rules-editor.js
index c173c069..b2ed1b68 100644
--- a/static/js/scenes/collision-rules-editor.js
+++ b/static/js/scenes/collision-rules-editor.js
@@ -29,7 +29,10 @@ function collisionRuleTriggerSummary(rule) {
 }
 
 function collisionRuleActionSummary(action) {
-  if (action.type === 'quete') return COLLISION_ACTION_LABELS.quete + ' « ' + action.quete_id + ' »';
+  if (action.type === 'quete') {
+    var quest = (typeof questById === 'function') ? questById(action.quete_id) : null;
+    return COLLISION_ACTION_LABELS.quete + ' « ' + (quest ? quest.title : '#' + action.quete_id) + ' »';
+  }
   if (action.type === 'evenement') {
     var ev = CUSTOM_EVENTS_MAP[action.evenement_id];
     return COLLISION_ACTION_LABELS.evenement + ' « ' + (ev ? ev.name : '?') + ' »';
@@ -227,20 +230,19 @@ function collisionWizardSaveRule(action) {
 }
 
 // Chaque type d'action demande éventuellement une précision avant de
-// pouvoir se finaliser (quête -> son id ; événement -> lequel) — "attaque"
-// n'a besoin de rien de plus, se finalise directement.
+// pouvoir se finaliser ("quête" ouvre l'éditeur de quête lui-même — voir
+// static/js/quests/quest-editor.js::renderQuestPickerStep, pas un simple
+// champ texte ; événement -> lequel) — "attaque" n'a besoin de rien de
+// plus, se finalise directement.
 function collisionWizardChooseAction(type, nested) {
   if (type === 'attaque' || type === 'interagir') {
     collisionWizardFinalizeAction({ type: type }, nested);
     return;
   }
   if (type === 'quete') {
-    collisionWizardBodyEl().innerHTML =
-      '<p class="hint mb-2">Identifiant de la quête (l\'éditeur de quête reste à construire — cette règle ne fait que mémoriser la référence pour l\'instant) :</p>' +
-      '<div class="field is-grouped">' +
-        '<div class="control is-expanded"><input type="text" id="collisionWizardQueteId" class="input" placeholder="ex. quete-001"></div>' +
-        '<div class="control"><button type="button" class="button primary" onclick="collisionWizardSubmitQuete(' + (nested ? 'true' : 'false') + ')">Valider</button></div>' +
-      '</div>';
+    renderQuestPickerStep(function (quest) {
+      collisionWizardFinalizeAction({ type: 'quete', quete_id: quest.id }, nested);
+    });
     return;
   }
   if (type === 'evenement') {
@@ -258,13 +260,6 @@ function collisionWizardChooseAction(type, nested) {
   }
 }
 
-function collisionWizardSubmitQuete(nested) {
-  var input = document.getElementById('collisionWizardQueteId');
-  var queteId = input && input.value.trim();
-  if (!queteId) { input.focus(); return; }
-  collisionWizardFinalizeAction({ type: 'quete', quete_id: queteId }, nested);
-}
-
 document.addEventListener('DOMContentLoaded', function () {
   if (typeof COLLISION_RULE_OBJECTS !== 'undefined') renderCollisionRuleCards();
 });
diff --git a/static/style.css b/static/style.css
index a158bbc6..8944360b 100644
--- a/static/style.css
+++ b/static/style.css
@@ -690,7 +690,7 @@ body.builderBody > main.content{ flex:1 1 auto; min-height:0; overflow:hidden; d
 .collisionRuleCard:hover{ transform:translateY(-3px); box-shadow:0 10px 26px rgba(0,0,0,.28); }
 .collisionRuleCardHeader{ display:flex; align-items:center; gap:10px; margin-bottom:12px; }
 .collisionRuleCardThumb{
-  position:relative; width:40px; height:40px; border-radius:10px; overflow:hidden; background:var(--panel2);
+  position:relative; width:120px; height:120px; border-radius:10px; overflow:hidden; background:var(--panel2);
   display:flex; align-items:center; justify-content:center; flex-shrink:0;
   border:1px solid var(--border); box-shadow:inset 0 0 0 2px rgba(255,255,255,.03);
 }
@@ -760,6 +760,64 @@ body.builderBody > main.content{ flex:1 1 auto; min-height:0; overflow:hidden; d
 
 .collisionInteractBubble{ display:none; position:absolute; left:50%; bottom:100%; transform:translateX(-50%); margin-bottom:6px; background:#111; color:#fff; border-radius:10px; padding:4px 10px; font-size:12px; white-space:nowrap; pointer-events:none; z-index:20; }
 
+/* ---- Éditeur de quêtes (templates/quests.html + modale de dialogue
+   partagée avec l'assistant "+ Action" de l'éditeur de collision, voir
+   static/js/quests/quest-editor.js) ---- */
+.questsGrid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(280px, 1fr)); gap:18px; margin-top:14px; }
+.questCard{
+  background:linear-gradient(165deg, var(--panel), var(--panel2)); border:1px solid var(--border);
+  border-radius:16px; padding:16px; cursor:pointer; box-shadow:0 6px 18px rgba(0,0,0,.18);
+  animation:collisionCardIn .35s ease backwards; transition:transform .18s ease, box-shadow .18s ease;
+}
+.questCard:hover{ transform:translateY(-3px); box-shadow:0 10px 26px rgba(0,0,0,.28); border-color:var(--accent); }
+.questCardHeader{ display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px; }
+.questCardTitle{ margin:0; font-size:15px; font-weight:700; }
+.questCardObjectif{ font-size:12.5px; color:var(--forge-text-muted, #8b95a7); margin-bottom:12px; min-height:1.4em; }
+.questCardFooter{ display:flex; gap:8px; flex-wrap:wrap; }
+.questPill{ display:inline-flex; align-items:center; border-radius:999px; padding:3px 10px; font-size:11.5px; font-weight:700; }
+.questPill-score{ background:rgba(242,153,74,.18); color:#f2994a; }
+.questPill-resultat{ background:rgba(23,162,184,.18); color:#17a2b8; }
+.questPill-status{ background:var(--panel2); border:1px solid var(--border); }
+.questPill-status-nouvelle{ background:rgba(155,89,182,.18); color:#9b59b6; border-color:transparent; }
+.questPill-status-en_cours{ background:rgba(242,153,74,.18); color:#f2994a; border-color:transparent; }
+.questPill-status-terminee{ background:rgba(46,204,113,.18); color:#2ecc71; border-color:transparent; }
+
+.questDialogueModalContent{ max-width:min(92vw, 1080px); }
+.questDialogueModalHeader{ margin-bottom:10px; }
+.questFieldsGrid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(160px, 1fr)); gap:10px; margin-bottom:14px; }
+.questField{ display:flex; flex-direction:column; gap:4px; font-size:12px; font-weight:600; }
+.questField-wide{ grid-column:span 2; }
+.questDialogueColumns{ display:grid; grid-template-columns:repeat(3, minmax(220px, 1fr)); gap:14px; overflow-x:auto; }
+.questDialogueColumn{
+  background:rgba(0,0,0,.15); border:1px solid var(--border); border-radius:12px; padding:10px;
+  display:flex; flex-direction:column; gap:8px; min-height:160px;
+}
+.questDialogueColumnTitle{ margin:0 0 2px; font-size:13px; text-align:center; }
+.questDialogueColumnBubbles{ display:flex; flex-direction:column; gap:8px; flex:1; }
+.questDialogueAddBtn{ align-self:center; padding:6px 14px; font-size:12px; }
+
+.questBubbleRow{ display:flex; }
+.questBubbleRow-pnj{ justify-content:flex-start; }
+.questBubbleRow-joueur{ justify-content:flex-end; }
+.questBubble{
+  display:flex; flex-direction:column; gap:4px; max-width:88%; border-radius:14px; padding:8px 10px;
+  animation:collisionLinkIn .25s ease backwards;
+}
+.questBubble-pnj{ background:linear-gradient(135deg, #2f6fed, #1e4fb0); border-bottom-left-radius:4px; }
+.questBubble-joueur{ background:linear-gradient(135deg, #2ecc71, #1e9e57); border-bottom-right-radius:4px; }
+.questBubbleSpeaker{ font-size:10.5px; font-weight:700; color:rgba(255,255,255,.85); cursor:pointer; }
+.questBubbleText{
+  resize:none; overflow:hidden; border:none; background:transparent; color:#fff; font-size:13px;
+  font-family:inherit; padding:0; min-height:1.4em;
+}
+.questBubbleText::placeholder{ color:rgba(255,255,255,.6); }
+.questBubbleText:focus{ outline:none; }
+.questBubbleDelete{
+  align-self:flex-end; background:none; border:none; color:rgba(255,255,255,.6); cursor:pointer;
+  font-size:11px; padding:0; transition:color .15s ease;
+}
+.questBubbleDelete:hover{ color:#fff; }
+
 .listRow.selected{ border-color:var(--accent); background:var(--panel2); }
 
 .childList{ display:flex; flex-direction:column; gap:6px; margin:2px 0 10px 18px; padding-left:10px; border-left:2px dashed var(--border); }
diff --git a/templates/base.html b/templates/base.html
index 3392f0ef..cc21362c 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -53,6 +53,7 @@
        une version simplifiée (juste les écrans) pour un type "restreint"
        (quiz/embranchement/rpg), la version complète pour "custom". -->
   <a href="{{ url_for('game_dashboard', slug=game.slug) }}" class="gameNavLink {{ 'active' if request.path == '/game/' ~ game.slug else '' }}" title="{{ 'Écrans du jeu' if game.onboarding_type in ('quiz', 'embranchement', 'rpg') else 'Écrans, objets, templates, variables' }}">📊 Tableau de bord</a>
+  <a href="{{ url_for('quests_view', slug=game.slug) }}" class="gameNavLink {{ 'active' if request.path == '/game/' ~ game.slug ~ '/quests' else '' }}" title="Quêtes (objectif, récompense, statut, dialogue)">🗺️ Quêtes</a>
   <a href="{{ url_for('game_play', slug=game.slug) }}" target="_blank" class="gameNavLink" title="Aperçu jouable du jeu (une seule partie partagée, pour la conception)">▶️ Jouer</a>
   <!-- Phase 1.2 (feuille de route produit) : seul export retenu — paquet
        STATIQUE (aucun Python/Flask embarqué, voir
diff --git a/templates/quests.html b/templates/quests.html
new file mode 100644
index 00000000..a9d180cd
--- /dev/null
+++ b/templates/quests.html
@@ -0,0 +1,17 @@
+{% extends "base.html" %}
+{% block title %}Quêtes — {{ game.name }}{% endblock %}
+{% block content %}
+<div class="dashPanelHeader" style="align-items:center; justify-content:space-between;">
+  <h2>🗺️ Quêtes</h2>
+  <button type="button" class="collisionRuleAddBtn" onclick="createQuestFromListPage()">✚ Nouvelle quête</button>
+</div>
+<p class="hint">Une quête : un objectif, une récompense (score), un statut, un résultat — et un dialogue par statut, à écrire en cliquant sur sa carte.</p>
+
+<div id="questsGrid" class="questsGrid"></div>
+
+<script>
+  var QUESTS_JSON = {{ quests_json|safe }};
+  var GAME_SLUG = "{{ game.slug }}";
+</script>
+<script src="{{ url_for('static', filename='js/quests/quest-editor.js') }}"></script>
+{% endblock %}
diff --git a/templates/scene_edit.html b/templates/scene_edit.html
index 5bdfd131..86ff3264 100644
--- a/templates/scene_edit.html
+++ b/templates/scene_edit.html
@@ -443,6 +443,10 @@
   var COLLISION_ACTION_TYPES = {{ collision_action_types|tojson }};
   var COLLISION_TRIGGER_TYPES = {{ collision_trigger_types|tojson }};
   var COLLISION_DEFAULT_PERIMETRE_PX = {{ collision_default_perimetre_px }};
+  // Éditeur de quêtes (voir static/js/quests/quest-editor.js) — chargé
+  // avant collision-rules-editor.js : l'action "quete" de l'assistant
+  // "+ Action" ouvre directement cet éditeur (renderQuestPickerStep).
+  var QUESTS_JSON = {{ quests_json|safe }};
 </script>
 <script src="{{ url_for('static', filename='js/screen_edit/tree-panels.js') }}"></script>
 <script src="{{ url_for('static', filename='js/screen_edit/panel-init.js') }}"></script>
@@ -450,5 +454,6 @@
 <script src="{{ url_for('static', filename='js/screen_edit/builder-tabs.js') }}"></script>
 <script src="{{ url_for('static', filename='js/screen_edit/personnage-preview.js') }}"></script>
 <script src="{{ url_for('static', filename='js/scenes/scene-editor.js') }}"></script>
+<script src="{{ url_for('static', filename='js/quests/quest-editor.js') }}"></script>
 <script src="{{ url_for('static', filename='js/scenes/collision-rules-editor.js') }}"></script>
 {% endblock %}
diff --git a/tests/test_collision_rules.py b/tests/test_collision_rules.py
index 1a1e0fae..4eb55b9a 100644
--- a/tests/test_collision_rules.py
+++ b/tests/test_collision_rules.py
@@ -7,6 +7,7 @@ construit l'assistant "+ Action" ; ce fichier teste la couche serveur
 (défauts, validation, exposition dans full_game_payload)."""
 import re
 
+import db
 import screens
 
 
@@ -68,16 +69,17 @@ def test_rules_route_persists_a_perimeter_trigger_with_custom_radius(client, tmp
     assert rules == [{"trigger": "perimetre", "perimetre_px": 40.0, "action": {"type": "attaque"}}]
 
 
-def test_rules_route_persists_a_quest_action_with_free_form_id(client, tmp_game_slug_cleanup):
+def test_rules_route_persists_a_quest_action_referencing_a_quest_id(client, tmp_game_slug_cleanup):
     slug, screen_id = _create_jeu2d_game(client, tmp_game_slug_cleanup)
     pnj_id = _add_personnage(client, slug, screen_id, role="pnj")
+    quest = db.create_quest(slug, "Trouver la clé")
 
     resp = client.post(
         f"/game/{slug}/scene-objects/{pnj_id}/collision-rules",
-        data='{"rules": [{"trigger": "collision", "action": {"type": "quete", "quete_id": "quete-001"}}]}',
+        data='{"rules": [{"trigger": "collision", "action": {"type": "quete", "quete_id": ' + str(quest["id"]) + '}}]}',
         content_type="application/json",
     )
-    assert resp.get_json()["rules"] == [{"trigger": "collision", "action": {"type": "quete", "quete_id": "quete-001"}}]
+    assert resp.get_json()["rules"] == [{"trigger": "collision", "action": {"type": "quete", "quete_id": quest["id"]}}]
 
 
 def test_rules_route_persists_an_interagir_action_with_one_level_of_nesting(client, tmp_game_slug_cleanup):
@@ -89,11 +91,11 @@ def test_rules_route_persists_an_interagir_action_with_one_level_of_nesting(clie
 
     resp = client.post(
         f"/game/{slug}/scene-objects/{pnj_id}/collision-rules",
-        data='{"rules": [{"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": "q1"}}}]}',
+        data='{"rules": [{"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": 1}}}]}',
         content_type="application/json",
     )
     assert resp.get_json()["rules"] == [
-        {"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": "q1"}}},
+        {"trigger": "collision", "action": {"type": "interagir", "sub_action": {"type": "quete", "quete_id": 1}}},
     ]
 
 
diff --git a/tests/test_quests.py b/tests/test_quests.py
new file mode 100644
index 00000000..cf96b276
--- /dev/null
+++ b/tests/test_quests.py
@@ -0,0 +1,172 @@
+"""Éditeur de quêtes (voir db/quests/, routes/quests/, nouveau lien
+"🗺️ Quêtes" dans templates/base.html) : id, titre, objectif, récompense
+(score), statut (nouvelle/en_cours/terminee), résultat (reussi/echoue),
+et un dialogue par statut (3 colonnes — voir static/js/quests/
+quest-editor.js et sanitize_quest_dialogues). Une quête vit pour TOUT le
+jeu, jamais par écran (mêmes conventions que les événements
+personnalisés, db/custom_events/)."""
+import db
+
+
+def _make_game(tmp_game_slug_cleanup, name="pytest_quests"):
+    return tmp_game_slug_cleanup(db.create_game(name))
+
+
+def test_create_quest_has_sensible_defaults(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    assert quest["title"] == "Trouver la clé"
+    assert quest["objectif"] == ""
+    assert quest["recompense_score"] == 0
+    assert quest["status"] == "nouvelle"
+    assert quest["resultat"] is None
+    assert quest["dialogues"] == {}
+
+
+def test_create_quest_falls_back_to_default_title_when_blank(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "   ")
+    assert quest["title"] == "Nouvelle quête"
+
+
+def test_list_quests_orders_most_recent_first(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    first = db.create_quest(slug, "Première")
+    second = db.create_quest(slug, "Seconde")
+    ids = [q["id"] for q in db.list_quests(slug)]
+    assert ids[:2] == [second["id"], first["id"]]
+
+
+def test_update_quest_only_applies_known_valid_fields(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    updated = db.update_quest(slug, quest["id"], {
+        "title": "Trouver la clé dorée", "objectif": "Fouiller le donjon",
+        "recompense_score": 50, "status": "en_cours", "resultat": "reussi",
+        "unknown_field": "ignoré", "id": 999999,
+    })
+    assert updated["title"] == "Trouver la clé dorée"
+    assert updated["objectif"] == "Fouiller le donjon"
+    assert updated["recompense_score"] == 50
+    assert updated["status"] == "en_cours"
+    assert updated["resultat"] == "reussi"
+    assert updated["id"] == quest["id"]  # "id" dans fields est ignoré, jamais modifiable
+
+
+def test_update_quest_rejects_invalid_status_and_blank_title(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    updated = db.update_quest(slug, quest["id"], {"status": "en_pause", "title": "   "})
+    assert updated["status"] == "nouvelle"  # inchangé, valeur invalide ignorée
+    assert updated["title"] == "Trouver la clé"  # inchangé, titre vide ignoré
+
+
+def test_update_quest_returns_none_for_missing_quest(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    assert db.update_quest(slug, 999999, {"title": "x"}) is None
+
+
+def test_delete_quest_removes_it(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    db.delete_quest(slug, quest["id"])
+    assert db.get_quest(slug, quest["id"]) is None
+
+
+def test_sanitize_quest_dialogues_keeps_only_valid_lines_per_status():
+    raw = {
+        "nouvelle": [{"speaker": "pnj", "text": "Bonjour !"}, {"speaker": "joueur", "text": "  "}],
+        "en_cours": [{"speaker": "sorcier", "text": "invalide"}, "pas un objet"],
+        "terminee": "pas une liste",
+        "statut_inconnu": [{"speaker": "pnj", "text": "ignoré"}],
+    }
+    cleaned = db.sanitize_quest_dialogues(raw)
+    assert cleaned == {
+        "nouvelle": [{"speaker": "pnj", "text": "Bonjour !"}],
+        "en_cours": [],
+        "terminee": [],
+    }
+
+
+def test_set_quest_dialogues_persists_all_three_columns(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    dialogues = {
+        "nouvelle": [{"speaker": "pnj", "text": "Peux-tu m'aider ?"}, {"speaker": "joueur", "text": "Bien sûr !"}],
+        "en_cours": [{"speaker": "pnj", "text": "Alors, cette clé ?"}],
+        "terminee": [{"speaker": "pnj", "text": "Merci beaucoup !"}],
+    }
+    db.set_quest_dialogues(slug, quest["id"], dialogues)
+    reloaded = db.get_quest(slug, quest["id"])
+    assert reloaded["dialogues"] == dialogues
+
+
+def test_set_quest_dialogues_returns_none_for_missing_quest(tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    assert db.set_quest_dialogues(slug, 999999, {}) is None
+
+
+# ---------- Routes ----------
+
+def test_quests_view_route_renders_the_list(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    db.create_quest(slug, "Trouver la clé")
+    resp = client.get(f"/game/{slug}/quests")
+    assert resp.status_code == 200
+    assert b"Trouver la cl" in resp.data
+
+
+def test_quest_new_route_creates_and_returns_json(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    resp = client.post(f"/game/{slug}/quests/new", data='{"title": "Nouvelle quête du donjon"}', content_type="application/json")
+    assert resp.status_code == 200
+    quest = resp.get_json()["quest"]
+    assert quest["title"] == "Nouvelle quête du donjon"
+    assert db.get_quest(slug, quest["id"]) is not None
+
+
+def test_quests_list_json_route_returns_all_quests(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    db.create_quest(slug, "A")
+    db.create_quest(slug, "B")
+    resp = client.get(f"/game/{slug}/quests/list.json")
+    titles = {q["title"] for q in resp.get_json()["quests"]}
+    assert titles == {"A", "B"}
+
+
+def test_quest_update_route_persists_fields(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    resp = client.post(f"/game/{slug}/quests/{quest['id']}", data='{"recompense_score": 100, "status": "terminee"}', content_type="application/json")
+    assert resp.get_json()["quest"]["recompense_score"] == 100
+    assert resp.get_json()["quest"]["status"] == "terminee"
+
+
+def test_quest_update_route_404s_for_missing_quest(client, game):
+    resp = client.post(f"/game/{game}/quests/999999", data="{}", content_type="application/json")
+    assert resp.status_code == 404
+
+
+def test_quest_delete_route_removes_it(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    resp = client.post(f"/game/{slug}/quests/{quest['id']}/delete")
+    assert resp.get_json() == {"ok": True}
+    assert db.get_quest(slug, quest["id"]) is None
+
+
+def test_quest_dialogues_route_sanitizes_and_persists(client, tmp_game_slug_cleanup):
+    slug = _make_game(tmp_game_slug_cleanup)
+    quest = db.create_quest(slug, "Trouver la clé")
+    resp = client.post(
+        f"/game/{slug}/quests/{quest['id']}/dialogues",
+        data='{"dialogues": {"nouvelle": [{"speaker": "pnj", "text": "Salut !"}], "en_cours": [], "terminee": []}}',
+        content_type="application/json",
+    )
+    assert resp.get_json()["dialogues"]["nouvelle"] == [{"speaker": "pnj", "text": "Salut !"}]
+    assert db.get_quest(slug, quest["id"])["dialogues"]["nouvelle"] == [{"speaker": "pnj", "text": "Salut !"}]
+
+
+def test_quest_dialogues_route_404s_for_missing_quest(client, game):
+    resp = client.post(f"/game/{game}/quests/999999/dialogues", data='{"dialogues": {}}', content_type="application/json")
+    assert resp.status_code == 404