diff --git a/apps/server/src/game/engine.ts b/apps/server/src/game/engine.ts
index c0097b0..66137f8 100644
--- a/apps/server/src/game/engine.ts
+++ b/apps/server/src/game/engine.ts
@@ -24,6 +24,8 @@ interface RoundRuntime {
   startedAt: number
   endsAt: number
   data: unknown
+  /** Payload public de la manche (pour la reconnexion). */
+  payload: unknown
 }
 
 export interface GameEngineOptions {
@@ -137,6 +139,22 @@ export class GameEngine implements RoomGameController {
     })
   }
 
+  /** Reconnexion : re-pousse la manche en cours au socket d'un joueur. */
+  resync(socketId: string, playerId: string): void {
+    if (!this.runtime || this.room.status !== "in_round") {
+      return
+    }
+    const r = this.runtime
+    this.io.to(socketId).emit("round:start", {
+      type: r.round.type,
+      djId: r.djId === playerId ? r.djId : undefined,
+      mine: r.secretPlayerId === playerId ? true : undefined,
+      startsAt: r.startedAt,
+      endsAt: r.endsAt,
+      payload: r.payload,
+    })
+  }
+
   private async playRound(config: RoundConfig): Promise<void> {
     const round = this.createRound(config.type)
     const start = round.start(this.room)
@@ -154,6 +172,7 @@ export class GameEngine implements RoomGameController {
       startedAt,
       endsAt,
       data: start.data,
+      payload: start.payload,
     }
     this.room.status = "in_round"
     this.broadcastState()
diff --git a/apps/server/src/game/round.ts b/apps/server/src/game/round.ts
index 46be5e9..e9a59a6 100644
--- a/apps/server/src/game/round.ts
+++ b/apps/server/src/game/round.ts
@@ -73,4 +73,6 @@ export interface RoomGameController {
   handleVote(playerId: string, answer: Answer): void
   /** Relais média du DJ (blindtest) : rebroadcast media:sync à toute la room. */
   handleMediaControl(playerId: string, payload: MediaControlPayload): void
+  /** Reconnexion : re-pousse la manche en cours au socket d'un joueur. */
+  resync(socketId: string, playerId: string): void
 }
diff --git a/apps/server/src/handlers.ts b/apps/server/src/handlers.ts
index 2a39854..8ab1faf 100644
--- a/apps/server/src/handlers.ts
+++ b/apps/server/src/handlers.ts
@@ -60,7 +60,7 @@ export function registerRoomHandlers(
       socket.data.playerId = player.id
       socket.data.roomCode = room.code
       socket.join(room.code)
-      ack({ ok: true, data: { roomCode: room.code, playerId: player.id } })
+      ack({ ok: true, data: { roomCode: room.code, playerId: player.id, token: player.reconnectToken } })
       broadcastState(room)
     } catch (err) {
       ack({ ok: false, error: toErrorPayload(err) })
@@ -75,13 +75,46 @@ export function registerRoomHandlers(
       socket.data.playerId = player.id
       socket.data.roomCode = room.code
       socket.join(room.code)
-      ack({ ok: true, data: { roomCode: room.code, playerId: player.id } })
+      ack({ ok: true, data: { roomCode: room.code, playerId: player.id, token: player.reconnectToken } })
       broadcastState(room)
     } catch (err) {
       ack({ ok: false, error: toErrorPayload(err) })
     }
   })
 
+  socket.on("room:rejoin", (payload, ack) => {
+    const code =
+      typeof payload?.roomCode === "string"
+        ? payload.roomCode.trim().toUpperCase()
+        : ""
+    const room = rooms.get(code)
+    const player = room?.players.get(payload?.playerId ?? "")
+    if (!room || !player || player.reconnectToken !== payload?.token) {
+      ack({
+        ok: false,
+        error: { code: "REJOIN_FAILED", message: "Reconnexion impossible." },
+      })
+      return
+    }
+    player.connected = true
+    player.socketId = socket.id
+    socket.data.playerId = player.id
+    socket.data.roomCode = room.code
+    socket.join(room.code)
+    ack({
+      ok: true,
+      data: {
+        roomCode: room.code,
+        playerId: player.id,
+        token: player.reconnectToken,
+      },
+    })
+    io.to(room.code).emit("player:rejoined", { playerId: player.id })
+    broadcastState(room)
+    // Re-pousse la manche en cours au socket reconnecté (si partie en cours).
+    room.game?.resync(socket.id, player.id)
+  })
+
   socket.on("player:setName", (payload) => {
     const code = socket.data.roomCode
     const playerId = socket.data.playerId
@@ -291,6 +324,22 @@ export function registerRoomHandlers(
     broadcastState(room)
   })
 
+  socket.on("room:leave", () => {
+    const code = socket.data.roomCode
+    const playerId = socket.data.playerId
+    if (!code || !playerId) {
+      return
+    }
+    socket.leave(code)
+    socket.data.roomCode = undefined
+    socket.data.playerId = undefined
+    const room = rooms.leave(code, playerId)
+    if (room) {
+      io.to(room.code).emit("player:left", { playerId })
+      broadcastState(room)
+    }
+  })
+
   socket.on("disconnect", () => {
     const affected = rooms.handleDisconnect(socket.id)
     if (!affected) {
diff --git a/apps/server/src/rooms.ts b/apps/server/src/rooms.ts
index 96be50b..d32dd67 100644
--- a/apps/server/src/rooms.ts
+++ b/apps/server/src/rooms.ts
@@ -16,6 +16,8 @@ export interface ServerPlayer {
   name: string
   connected: boolean
   socketId: string | null
+  /** Secret de reconnexion (refresh/coupure). */
+  reconnectToken: string
 }
 
 /** Titre soumis pour le blindtest. `submittedBy` reste secret jusqu'au reveal. */
@@ -92,6 +94,28 @@ export class RoomManager {
     return this.rooms.get(code)
   }
 
+  /**
+   * Retire un joueur d'une room (départ volontaire). Réassigne l'hôte si besoin,
+   * supprime la room si plus personne. Renvoie la room (ou null si supprimée).
+   */
+  leave(code: string, playerId: string): ServerRoom | null {
+    const room = this.rooms.get(code)
+    if (!room) {
+      return null
+    }
+    room.players.delete(playerId)
+    room.scores.delete(playerId)
+    if (room.players.size === 0) {
+      this.rooms.delete(code)
+      return null
+    }
+    if (room.hostId === playerId) {
+      const named = [...room.players.values()].find((p) => p.name !== "")
+      room.hostId = (named ?? [...room.players.values()][0]).id
+    }
+    return room
+  }
+
   /**
    * Marque le joueur d'un socket comme déconnecté.
    * Retourne la room affectée et le playerId, ou null si non rattaché.
@@ -138,7 +162,13 @@ export class RoomManager {
   }
 
   private makePlayer(name: string, socketId: string): ServerPlayer {
-    return { id: randomUUID(), name, connected: true, socketId }
+    return {
+      id: randomUUID(),
+      name,
+      connected: true,
+      socketId,
+      reconnectToken: randomUUID(),
+    }
   }
 
   private generateCode(): string {
diff --git a/apps/web/src/components/game-end-view.tsx b/apps/web/src/components/game-end-view.tsx
index 5e5bd39..ce64d4d 100644
--- a/apps/web/src/components/game-end-view.tsx
+++ b/apps/web/src/components/game-end-view.tsx
@@ -133,7 +133,7 @@ export function GameEndView({ snapshot }: { snapshot: RoomSnapshot }) {
   const finalScores = useRoomStore((s) => s.finalScores)
   const gameTracks = useRoomStore((s) => s.gameTracks)
   const gameRecap = useRoomStore((s) => s.gameRecap)
-  const reset = useRoomStore((s) => s.reset)
+  const leaveRoom = useRoomStore((s) => s.leaveRoom)
   const returnToLobby = useRoomStore((s) => s.returnToLobby)
   const isHost = snapshot.hostId === playerId
 
@@ -284,7 +284,7 @@ export function GameEndView({ snapshot }: { snapshot: RoomSnapshot }) {
           </p>
         )}
         <Link href="/">
-          <Button variant="secondary" className="w-full" onClick={reset}>
+          <Button variant="secondary" className="w-full" onClick={leaveRoom}>
             Quitter
           </Button>
         </Link>
diff --git a/apps/web/src/lib/session.ts b/apps/web/src/lib/session.ts
new file mode 100644
index 0000000..f707914
--- /dev/null
+++ b/apps/web/src/lib/session.ts
@@ -0,0 +1,34 @@
+// Session locale pour la reconnexion (refresh / coupure réseau).
+
+const KEY = "nerdware-session"
+
+export interface Session {
+  roomCode: string
+  playerId: string
+  token: string
+  name: string
+}
+
+export function getSession(): Session | null {
+  try {
+    const raw = localStorage.getItem(KEY)
+    return raw ? (JSON.parse(raw) as Session) : null
+  } catch {
+    return null
+  }
+}
+
+export function setSession(session: Session): void {
+  localStorage.setItem(KEY, JSON.stringify(session))
+}
+
+export function patchSession(patch: Partial<Session>): void {
+  const current = getSession()
+  if (current) {
+    setSession({ ...current, ...patch })
+  }
+}
+
+export function clearSession(): void {
+  localStorage.removeItem(KEY)
+}
diff --git a/apps/web/src/pages/room.tsx b/apps/web/src/pages/room.tsx
index 81bfb56..12e82a4 100644
--- a/apps/web/src/pages/room.tsx
+++ b/apps/web/src/pages/room.tsx
@@ -1,5 +1,6 @@
-import { Link } from "wouter"
+import { Link, useLocation } from "wouter"
 import { AnimatePresence, motion } from "framer-motion"
+import { LogOut } from "lucide-react"
 import { Button } from "@workspace/ui/components/button"
 import { useRoomStore } from "@/store/room"
 import { LobbyView } from "@/components/lobby-view"
@@ -13,8 +14,10 @@ import { RoundTransition } from "@/components/round-transition"
 import { PseudoScreen } from "@/components/pseudo-screen"
 
 export function RoomPage({ code }: { code: string }) {
+  const [, navigate] = useLocation()
   const snapshot = useRoomStore((s) => s.snapshot)
   const roomCode = useRoomStore((s) => s.roomCode)
+  const leaveRoom = useRoomStore((s) => s.leaveRoom)
   const playerId = useRoomStore((s) => s.playerId)
   const connected = useRoomStore((s) => s.connected)
   const pseudoSet = useRoomStore((s) => s.pseudoSet)
@@ -80,10 +83,22 @@ export function RoomPage({ code }: { code: string }) {
       >
         <header className="flex items-center justify-between">
           <RoomCode code={snapshot.code} />
-          <span
-            className={`size-2.5 rounded-full ${connected ? "bg-green-500" : "bg-red-500"}`}
-            title={connected ? "Connecté" : "Déconnecté"}
-          />
+          <div className="flex items-center gap-3">
+            <span
+              className={`size-2.5 rounded-full ${connected ? "bg-green-500" : "bg-red-500"}`}
+              title={connected ? "Connecté" : "Déconnecté"}
+            />
+            <Button
+              size="sm"
+              variant="secondary"
+              onClick={() => {
+                leaveRoom()
+                navigate("/")
+              }}
+            >
+              <LogOut /> Quitter
+            </Button>
+          </div>
         </header>
 
         <AnimatePresence mode="wait">
diff --git a/apps/web/src/store/room.ts b/apps/web/src/store/room.ts
index c8ecbfe..5b72134 100644
--- a/apps/web/src/store/room.ts
+++ b/apps/web/src/store/room.ts
@@ -17,6 +17,14 @@ import {
   type VoteAckPayload,
 } from "@nerdware/shared"
 import { socket } from "@/lib/socket"
+import {
+  clearSession,
+  getSession,
+  patchSession,
+  setSession,
+} from "@/lib/session"
+
+const saved = getSession()
 
 /** Manche en cours côté client (depuis round:start). */
 export interface ActiveRound {
@@ -69,6 +77,7 @@ interface RoomState {
   submitTrack: (youtubeUrl: string) => Promise<SubmitOkPayload>
   removeTrack: (trackId: string) => Promise<boolean>
   returnToLobby: () => void
+  leaveRoom: () => void
   vote: (choiceIndex: number) => void
   voteText: (text: string) => void
   voteBlindtest: (answer: BlindtestAnswer) => void
@@ -80,9 +89,9 @@ interface RoomState {
 
 export const useRoomStore = create<RoomState>((set, get) => ({
   connected: socket.connected,
-  playerId: null,
-  roomCode: null,
-  pseudoSet: false,
+  playerId: saved?.playerId ?? null,
+  roomCode: saved?.roomCode ?? null,
+  pseudoSet: !!saved?.name,
   snapshot: null,
   lastError: null,
   round: null,
@@ -103,6 +112,7 @@ export const useRoomStore = create<RoomState>((set, get) => ({
     new Promise((resolve, reject) => {
       socket.emit("room:create", {}, (res) => {
         if (res.ok) {
+          setSession({ ...res.data, name: "" })
           set({
             playerId: res.data.playerId,
             roomCode: res.data.roomCode,
@@ -120,6 +130,7 @@ export const useRoomStore = create<RoomState>((set, get) => ({
     new Promise((resolve, reject) => {
       socket.emit("room:join", { roomCode }, (res) => {
         if (res.ok) {
+          setSession({ ...res.data, name: "" })
           set({
             playerId: res.data.playerId,
             roomCode: res.data.roomCode,
@@ -138,6 +149,7 @@ export const useRoomStore = create<RoomState>((set, get) => ({
       return
     }
     socket.emit("player:setName", { name: name.trim() })
+    patchSession({ name: name.trim() })
     set({ pseudoSet: true })
   },
 
@@ -181,6 +193,11 @@ export const useRoomStore = create<RoomState>((set, get) => ({
     socket.emit("lobby:return")
   },
 
+  leaveRoom: () => {
+    socket.emit("room:leave")
+    get().reset()
+  },
+
   vote: (choiceIndex) => {
     if (get().hasVoted) {
       return
@@ -212,7 +229,8 @@ export const useRoomStore = create<RoomState>((set, get) => ({
   boom: () => set((s) => ({ boomKey: s.boomKey + 1 })),
 
   clearError: () => set({ lastError: null }),
-  reset: () =>
+  reset: () => {
+    clearSession()
     set({
       roomCode: null,
       pseudoSet: false,
@@ -231,11 +249,34 @@ export const useRoomStore = create<RoomState>((set, get) => ({
       roundKey: 0,
       roundKind: "quiz",
       roundModeChanged: false,
-    }),
+    })
+  },
 }))
 
 // Listeners socket → on pousse l'état serveur dans le store (source de vérité).
-socket.on("connect", () => useRoomStore.setState({ connected: true }))
+socket.on("connect", () => {
+  useRoomStore.setState({ connected: true })
+  // Reconnexion : on retente de réintégrer la room mémorisée (refresh/coupure).
+  const s = getSession()
+  if (!s) {
+    return
+  }
+  socket.emit(
+    "room:rejoin",
+    { roomCode: s.roomCode, playerId: s.playerId, token: s.token },
+    (res) => {
+      if (res.ok) {
+        useRoomStore.setState({
+          roomCode: res.data.roomCode,
+          playerId: res.data.playerId,
+          pseudoSet: !!s.name,
+        })
+      } else {
+        useRoomStore.getState().reset()
+      }
+    }
+  )
+})
 socket.on("disconnect", () => useRoomStore.setState({ connected: false }))
 socket.on("room:state", (snapshot) =>
   useRoomStore.setState(
diff --git a/packages/shared/src/events.ts b/packages/shared/src/events.ts
index 62cd0df..f0dfe38 100644
--- a/packages/shared/src/events.ts
+++ b/packages/shared/src/events.ts
@@ -23,6 +23,14 @@ export interface RoomCreatePayload {
 export interface RoomCreatedPayload {
   roomCode: string
   playerId: string
+  /** Jeton secret pour se reconnecter après un refresh/coupure. */
+  token: string
+}
+
+export interface RejoinPayload {
+  roomCode: string
+  playerId: string
+  token: string
 }
 
 export interface RoomJoinPayload {
@@ -139,7 +147,9 @@ export type Ack<T> = (result: { ok: true; data: T } | { ok: false; error: ErrorP
 export interface ClientToServerEvents {
   "room:create": (payload: RoomCreatePayload, ack: Ack<RoomCreatedPayload>) => void
   "room:join": (payload: RoomJoinPayload, ack: Ack<RoomCreatedPayload>) => void
+  "room:rejoin": (payload: RejoinPayload, ack: Ack<RoomCreatedPayload>) => void
   "player:setName": (payload: SetNamePayload) => void
+  "room:leave": () => void
   "lobby:updateSettings": (payload: UpdateSettingsPayload) => void
   "lobby:return": () => void
   "game:start": (ack: Ack<null>) => void