diff --git a/NOTE.md b/NOTE.md
index d374ced..1ee7307 100644
--- a/NOTE.md
+++ b/NOTE.md
@@ -10,7 +10,7 @@ A faire :
 - Changer les images, rajouter les fonds, ...
 
 
-- Voir si les event listener intégré à pyglet sont plus pratique que l'event propagation (?)
+- Voir si les event listener intégré à pyglet sont plus pratiques que l'event propagation (?)
 - Faire une scène incluant par défaut les boutons "Retour" (?)
 
 
diff --git a/source/gui/scene/Game.py b/source/gui/scene/Game.py
index b65d7a0..e33b3ec 100644
--- a/source/gui/scene/Game.py
+++ b/source/gui/scene/Game.py
@@ -7,7 +7,7 @@ from source.gui.scene import GameResult
 from source.gui.scene.abc import Scene
 from source.gui import widget, texture, scene
 from source import core
-from source.network.packet import PacketChat, PacketBombPlaced, PacketBoatPlaced, PacketBombState
+from source.network.packet import PacketChat, PacketBombPlaced, PacketBoatPlaced, PacketBombState, PacketQuit
 from source.type import Point2D
 from source.utils import StoppableThread
 
@@ -218,12 +218,14 @@ class Game(Scene):
         )
 
     def quit(self):
+        PacketQuit().send_connection(self.connection)
+
         self.thread.stop()
         from source.gui.scene import MainMenu
         self.window.set_scene(MainMenu)
 
     def game_end(self, won: bool):
-        self.window.add_scene(GameResult, won=won)
+        self.window.add_scene(GameResult, game_scene=self, won=won)
 
     def chat_new_message(self, author: str, content: str):
         message: str = f"[{author}] - {content}"
@@ -280,13 +282,13 @@ class Game(Scene):
 
     # network
 
-    def network_on_chat(self, connection: socket.socket, packet: PacketChat):
+    def network_on_chat(self, packet: PacketChat):
         self.chat_new_message(self.name_enemy, packet.message)
 
-    def network_on_boat_placed(self, connection: socket.socket, packet: PacketBoatPlaced):
+    def network_on_boat_placed(self, packet: PacketBoatPlaced):
         self.boat_ready_enemy = True
 
-    def network_on_bomb_placed(self, connection: socket.socket, packet: PacketBombPlaced):
+    def network_on_bomb_placed(self, packet: PacketBombPlaced):
         try:
             # essaye de poser la bombe sur la grille alliée
             bomb_state = self.grid_ally.board.bomb(packet.position)
@@ -302,7 +304,7 @@ class Game(Scene):
             self.my_turn = not bomb_state.success
 
         # envoie le résultat à l'autre joueur
-        PacketBombState(position=packet.position, bomb_state=bomb_state).send_connection(connection)
+        PacketBombState(position=packet.position, bomb_state=bomb_state).send_connection(self.connection)
 
         if bomb_state.success:
             # si la bombe a touché un bateau, incrémente le score
@@ -313,7 +315,7 @@ class Game(Scene):
             self.game_end(won=False)
             return True  # coupe la connexion
 
-    def network_on_bomb_state(self, connection: socket.socket, packet: PacketBombState):
+    def network_on_bomb_state(self, packet: PacketBombState):
         if packet.bomb_state is BombState.ERROR:
             # si une erreur est survenue, on rejoue
             self.my_turn = True
@@ -334,6 +336,11 @@ class Game(Scene):
             self.game_end(won=True)
             return True  # coupe la connexion
 
+    def network_on_quit(self, packet: PacketQuit):
+        self.thread.stop()
+        from source.gui.scene import GameError
+        self.window.set_scene(GameError, text="L'adversaire a quitté la partie.")
+
     # event
 
     def on_resize_after(self, width: int, height: int):
diff --git a/source/gui/scene/GameError.py b/source/gui/scene/GameError.py
new file mode 100644
index 0000000..0d38bff
--- /dev/null
+++ b/source/gui/scene/GameError.py
@@ -0,0 +1,37 @@
+from typing import TYPE_CHECKING
+
+from source.gui import widget, texture
+from source.gui.scene.abc import Scene
+
+
+if TYPE_CHECKING:
+    from source.gui.window import Window
+
+
+class GameError(Scene):
+    def __init__(self, window: "Window", text: str, **kwargs):
+        super().__init__(window, **kwargs)
+
+        self.label = self.add_widget(
+            widget.Text,
+
+            x=0.5, y=0.5, width=1.0,
+
+            anchor_x="center",
+
+            text=text,
+            font_size=28,
+        )
+
+        self.back = self.add_widget(
+            widget.Button,
+
+            x=lambda widget: widget.scene.window.width - 20 - widget.width, y=20, width=0.2, height=0.1,
+
+            label_text="Retour",
+
+            style=texture.Button.Style1
+        )
+
+        from source.gui.scene import MainMenu
+        self.back.add_listener("on_click_release", lambda *_: self.window.set_scene(MainMenu))
diff --git a/source/gui/scene/GameResult.py b/source/gui/scene/GameResult.py
index 73b69cb..35b39b6 100644
--- a/source/gui/scene/GameResult.py
+++ b/source/gui/scene/GameResult.py
@@ -25,4 +25,4 @@ class GameResult(Popup):
 
         # TODO: rendre l'image transparente si possible
 
-        pyglet.clock.schedule_once(lambda dt: self.game_scene.quit, 5.0)
+        pyglet.clock.schedule_once(lambda dt: self.game_scene.quit(), 5.0)
diff --git a/source/gui/scene/__init__.py b/source/gui/scene/__init__.py
index 3f5d5d0..0aac951 100644
--- a/source/gui/scene/__init__.py
+++ b/source/gui/scene/__init__.py
@@ -1,6 +1,7 @@
 from .GameResult import GameResult
 from .Game import Game
 from .GameQuit import GameQuit
+from .GameError import GameError
 from .Settings import Settings
 from .RoomHost import RoomHost
 from .RoomJoin import RoomJoin
diff --git a/source/network/game_network.py b/source/network/game_network.py
index e2445c0..e879d72 100644
--- a/source/network/game_network.py
+++ b/source/network/game_network.py
@@ -26,6 +26,7 @@ def game_network(
         packet.PacketBoatPlaced: game_scene.network_on_boat_placed,
         packet.PacketBombPlaced: game_scene.network_on_bomb_placed,
         packet.PacketBombState: game_scene.network_on_bomb_state,
+        packet.PacketQuit: game_scene.network_on_quit,
     }
 
     while True:
@@ -38,6 +39,5 @@ def game_network(
         data = data_type.from_connection(connection)
 
         if in_pyglet_context(
-            game_methods[data_type],  # récupère la methode relié ce type de donnée
-            connection, data
+            game_methods[data_type], data  # récupère la methode relié ce type de donnée
         ): return  # Appelle la méthode. Si elle renvoie True, arrête le thread
diff --git a/source/network/packet/PacketBoatPlaced.py b/source/network/packet/PacketBoatPlaced.py
index f3864f9..3d66813 100644
--- a/source/network/packet/PacketBoatPlaced.py
+++ b/source/network/packet/PacketBoatPlaced.py
@@ -1,17 +1,7 @@
-from dataclasses import dataclass
-
-from source.network.packet.abc import SimplePacket
+from source.network.packet.abc import SignalPacket
 
 
-@dataclass
-class PacketBoatPlaced(SimplePacket):
+class PacketBoatPlaced(SignalPacket):
     """
     A packet that signal that all the boat of the player have been placed
     """
-
-    def to_bytes(self) -> bytes:
-        return b""
-
-    @classmethod
-    def from_bytes(cls, data: bytes) -> "PacketBoatPlaced":
-        return cls()
diff --git a/source/network/packet/PacketQuit.py b/source/network/packet/PacketQuit.py
new file mode 100644
index 0000000..462be95
--- /dev/null
+++ b/source/network/packet/PacketQuit.py
@@ -0,0 +1,7 @@
+from source.network.packet.abc import SignalPacket
+
+
+class PacketQuit(SignalPacket):
+    """
+    A packet that is sent when the player wish to quit a game.
+    """
diff --git a/source/network/packet/__init__.py b/source/network/packet/__init__.py
index c74e280..a6f4745 100644
--- a/source/network/packet/__init__.py
+++ b/source/network/packet/__init__.py
@@ -4,3 +4,4 @@ from .PacketBombState import PacketBombState
 from .PacketBoatPlaced import PacketBoatPlaced
 from .PacketSettings import PacketSettings
 from .PacketUsername import PacketUsername
+from .PacketQuit import PacketQuit
diff --git a/source/network/packet/abc/SignalPacket.py b/source/network/packet/abc/SignalPacket.py
new file mode 100644
index 0000000..60c5098
--- /dev/null
+++ b/source/network/packet/abc/SignalPacket.py
@@ -0,0 +1,18 @@
+from abc import ABC
+import socket
+
+from source.network.packet.abc import Packet
+
+
+class SignalPacket(Packet, ABC):
+    """
+    A packet that has for only usage to send a signal thanks to the type of the class.
+    It does not hold any other data.
+    """
+
+    def to_bytes(self) -> bytes:
+        return b""
+
+    @classmethod
+    def from_connection(cls, connection: socket.socket) -> "SignalPacket":
+        return cls()
diff --git a/source/network/packet/abc/__init__.py b/source/network/packet/abc/__init__.py
index cea164c..2676067 100644
--- a/source/network/packet/abc/__init__.py
+++ b/source/network/packet/abc/__init__.py
@@ -1,4 +1,5 @@
 from .Packet import Packet
 
+from .SignalPacket import SignalPacket
 from .SimplePacket import SimplePacket
 from .VariableLengthBytesPacket import VariableLengthBytesPacket