diff --git a/Cargo.lock b/Cargo.lock
index dab6f2cb..0413b445 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2499,6 +2499,7 @@ dependencies = [
  "de_lobby_client",
  "de_lobby_model",
  "de_map",
+ "de_messages",
  "de_multiplayer",
  "futures-lite",
  "thiserror",
diff --git a/crates/core/src/gconfig.rs b/crates/core/src/gconfig.rs
index 9884e9d6..0d05630f 100644
--- a/crates/core/src/gconfig.rs
+++ b/crates/core/src/gconfig.rs
@@ -1,7 +1,7 @@
 use std::path::{Path, PathBuf};
 
 use bevy::prelude::Resource;
-use tinyvec::ArrayVec;
+use tinyvec::{array_vec, ArrayVec};
 
 use crate::player::{Player, PlayerRange};
 
@@ -30,6 +30,8 @@ impl GameConfig {
     }
 }
 
+type PlayerVec = ArrayVec<[Player; Player::MAX_PLAYERS]>;
+
 /// Info about players directly controlled or simulated on this computer.
 ///
 /// "Playable" is the player directly controlled by the user of this computer.
@@ -39,7 +41,7 @@ impl GameConfig {
 /// exactly one computer.
 pub struct LocalPlayers {
     playable: Player,
-    locals: ArrayVec<[Player; Player::MAX_PLAYERS]>,
+    locals: PlayerVec,
 }
 
 impl LocalPlayers {
@@ -48,7 +50,11 @@ impl LocalPlayers {
     }
 
     pub fn from_range(playable: Player, locals: PlayerRange) -> Self {
-        Self::new(playable, locals.collect())
+        Self::new(playable, locals.collect::<PlayerVec>())
+    }
+
+    pub fn from_single(playable: Player) -> Self {
+        Self::new(playable, array_vec!(_ => playable))
     }
 
     /// # Arguments
@@ -57,7 +63,11 @@ impl LocalPlayers {
     ///
     /// * `locals` - other players simulated locally on this computer. It must
     ///   include `playable`.
-    pub fn new(playable: Player, locals: ArrayVec<[Player; Player::MAX_PLAYERS]>) -> Self {
+    pub fn new<A>(playable: Player, locals: A) -> Self
+    where
+        A: Into<PlayerVec>,
+    {
+        let locals = locals.into();
         assert!((*locals).contains(&playable));
         Self { playable, locals }
     }
diff --git a/crates/map/src/hash.rs b/crates/map/src/hash.rs
index 5ca6f88d..50c3292f 100644
--- a/crates/map/src/hash.rs
+++ b/crates/map/src/hash.rs
@@ -20,7 +20,7 @@ impl MapHash {
     }
 
     /// Constructs the map hash from a hexadecimal string.
-    pub(crate) fn from_hex(hex: &str) -> Result<Self, HexError> {
+    pub fn from_hex(hex: &str) -> Result<Self, HexError> {
         if hex.len() != 64 {
             return Err(HexError::InvalidLenError);
         }
diff --git a/crates/menu/Cargo.toml b/crates/menu/Cargo.toml
index 937f6e3d..5c7620bf 100644
--- a/crates/menu/Cargo.toml
+++ b/crates/menu/Cargo.toml
@@ -19,6 +19,7 @@ de_gui.workspace = true
 de_lobby_client.workspace = true
 de_lobby_model.workspace = true
 de_map.workspace = true
+de_messages.workspace = true
 de_multiplayer.workspace = true
 
 # Other
diff --git a/crates/menu/src/multiplayer/joined/state.rs b/crates/menu/src/multiplayer/joined/state.rs
index 77c5708f..d6c3b2a9 100644
--- a/crates/menu/src/multiplayer/joined/state.rs
+++ b/crates/menu/src/multiplayer/joined/state.rs
@@ -1,8 +1,17 @@
 use bevy::prelude::*;
-use de_core::state::AppState;
+use de_core::{
+    assets::asset_path,
+    gconfig::{GameConfig, LocalPlayers},
+    player::Player,
+    state::AppState,
+};
 use de_gui::ToastEvent;
 use de_lobby_client::GetGameRequest;
-use de_multiplayer::{PeerJoinedEvent, PeerLeftEvent, ShutdownMultiplayerEvent};
+use de_map::hash::MapHash;
+use de_messages::Readiness;
+use de_multiplayer::{
+    GameReadinessEvent, PeerJoinedEvent, PeerLeftEvent, ShutdownMultiplayerEvent,
+};
 
 use super::ui::RefreshPlayersEvent;
 use crate::multiplayer::{
@@ -29,7 +38,22 @@ impl Plugin for JoinedGameStatePlugin {
     }
 }
 
-fn cleanup(state: Res<State<AppState>>, mut shutdown: EventWriter<ShutdownMultiplayerEvent>) {
+#[derive(Resource)]
+pub(super) struct LocalPlayerRes(Player);
+
+impl LocalPlayerRes {
+    pub(super) fn new(player: Player) -> Self {
+        Self(player)
+    }
+}
+
+fn cleanup(
+    mut commands: Commands,
+    state: Res<State<AppState>>,
+    mut shutdown: EventWriter<ShutdownMultiplayerEvent>,
+) {
+    commands.remove_resource::<LocalPlayerRes>();
+
     if state.as_ref() != &AppState::InGame {
         shutdown.send(ShutdownMultiplayerEvent);
     }
@@ -40,6 +64,19 @@ fn refresh(game_name: Res<GameNameRes>, mut sender: Sender<GetGameRequest>) {
     sender.send(GetGameRequest::new(game_name.name_owned()));
 }
 
+fn handle_readiness(
+    mut events: EventReader<GameReadinessEvent>,
+    game_name: Res<GameNameRes>,
+    mut sender: Sender<GetGameRequest>,
+) {
+    if events.iter().all(|e| **e != Readiness::Ready) {
+        return;
+    }
+
+    sender.send(GetGameRequest::new(game_name.name_owned()));
+    // TODO marek the game as ready
+}
+
 fn handle_get_response(
     mut multi_state: ResMut<NextState<MultiplayerState>>,
     mut receiver: Receiver<GetGameRequest>,
@@ -58,3 +95,31 @@ fn handle_get_response(
         }
     }
 }
+
+fn start(
+    mut commands: Commands,
+    player: Res<LocalPlayerRes>,
+    mut app_state: ResMut<NextState<AppState>>,
+    mut multi_state: ResMut<NextState<MultiplayerState>>,
+    mut toasts: EventWriter<ToastEvent>,
+) {
+    // TODO config via event
+
+    let game_conf = game.setup().config();
+    let map_path = match MapHash::from_hex(game_conf.map().hash()) {
+        Ok(hash) => hash.construct_path(asset_path("maps")),
+        Err(error) => {
+            toasts.send(ToastEvent::new(error));
+            multi_state.set(MultiplayerState::SignIn);
+            return;
+        }
+    };
+
+    commands.insert_resource(GameConfig::new(
+        map_path,
+        LocalPlayers::from_single(player.0),
+    ));
+    app_state.set(AppState::InGame);
+}
+
+// TODO handle ready button event
diff --git a/crates/menu/src/multiplayer/joined/ui.rs b/crates/menu/src/multiplayer/joined/ui.rs
index d0069916..5c2bedb4 100644
--- a/crates/menu/src/multiplayer/joined/ui.rs
+++ b/crates/menu/src/multiplayer/joined/ui.rs
@@ -119,3 +119,5 @@ fn row(commands: &mut GuiCommands, player: &GamePlayer) -> Entity {
 
     row_id
 }
+
+// TODO ready button + click event
diff --git a/crates/menu/src/multiplayer/joining.rs b/crates/menu/src/multiplayer/joining.rs
index ce5d3b02..dfed4855 100644
--- a/crates/menu/src/multiplayer/joining.rs
+++ b/crates/menu/src/multiplayer/joining.rs
@@ -8,6 +8,7 @@ use de_multiplayer::{
 
 use super::{
     current::GameNameRes,
+    joined::LocalPlayerRes,
     requests::{Receiver, Sender},
     MultiplayerState,
 };
@@ -31,10 +32,12 @@ impl Plugin for JoiningGamePlugin {
 }
 
 fn cleanup(
+    mut commands: Commands,
     state: Res<State<MultiplayerState>>,
     mut shutdown: EventWriter<ShutdownMultiplayerEvent>,
 ) {
     if state.as_ref() != &MultiplayerState::GameJoined {
+        commands.remove_resource::<LocalPlayerRes>();
         shutdown.send(ShutdownMultiplayerEvent);
     }
 }
@@ -67,6 +70,7 @@ fn handle_get_response(
 }
 
 fn handle_joined_event(
+    mut commands: Commands,
     game_name: Res<GameNameRes>,
     mut events: EventReader<GameJoinedEvent>,
     mut sender: Sender<JoinGameRequest>,
@@ -75,6 +79,7 @@ fn handle_joined_event(
         return;
     };
 
+    commands.insert_resource(LocalPlayerRes::new(event.player()));
     sender.send(JoinGameRequest::new(
         game_name.name_owned(),
         GamePlayerInfo::new(event.player().to_num()),
diff --git a/crates/menu/src/multiplayer/setup.rs b/crates/menu/src/multiplayer/setup.rs
index 3339649a..38ef5bf7 100644
--- a/crates/menu/src/multiplayer/setup.rs
+++ b/crates/menu/src/multiplayer/setup.rs
@@ -4,11 +4,13 @@ use de_gui::ToastEvent;
 use de_lobby_client::CreateGameRequest;
 use de_lobby_model::{GameConfig, GameSetup};
 use de_multiplayer::{
-    ConnectionType, GameOpenedEvent, NetGameConf, ShutdownMultiplayerEvent, StartMultiplayerEvent,
+    ConnectionType, GameJoinedEvent, GameOpenedEvent, NetGameConf, ShutdownMultiplayerEvent,
+    StartMultiplayerEvent,
 };
 
 use super::{
     current::GameNameRes,
+    joined::LocalPlayerRes,
     requests::{Receiver, Sender},
     MultiplayerState,
 };
@@ -27,8 +29,16 @@ impl Plugin for SetupGamePlugin {
             )
             .add_systems(
                 Update,
-                (create_game_in_lobby, handle_lobby_response)
+                (
+                    create_game_in_lobby,
+                    handle_lobby_response,
+                    handle_joined_event,
+                )
                     .run_if(in_state(MultiplayerState::GameSetup)),
+            )
+            .add_systems(
+                PostUpdate,
+                move_once_ready.run_if(in_state(MultiplayerState::GameSetup)),
             );
     }
 }
@@ -52,6 +62,9 @@ impl SetupGameEvent {
 #[derive(Resource)]
 pub(crate) struct GameConfigRes(GameConfig);
 
+#[derive(Resource)]
+struct JoinedMarker;
+
 fn handle_setup_event(
     mut commands: Commands,
     mut next_state: ResMut<NextState<MultiplayerState>>,
@@ -65,14 +78,26 @@ fn handle_setup_event(
     next_state.set(MultiplayerState::GameSetup);
 }
 
+fn move_once_ready(
+    joined: Option<Res<JoinedMarker>>,
+    local_player: Option<Res<LocalPlayerRes>>,
+    mut next_state: ResMut<NextState<MultiplayerState>>,
+) {
+    if joined.is_some() && local_player.is_some() {
+        next_state.set(MultiplayerState::GameJoined);
+    }
+}
+
 fn cleanup(
     mut commands: Commands,
     state: Res<State<MultiplayerState>>,
     mut shutdown: EventWriter<ShutdownMultiplayerEvent>,
 ) {
     commands.remove_resource::<GameConfigRes>();
+    commands.remove_resource::<JoinedMarker>();
 
     if state.as_ref() != &MultiplayerState::GameJoined {
+        commands.remove_resource::<LocalPlayerRes>();
         shutdown.send(ShutdownMultiplayerEvent);
     }
 }
@@ -109,7 +134,15 @@ fn create_game_in_lobby(
     sender.send(CreateGameRequest::new(game_setup));
 }
 
+fn handle_joined_event(mut commands: Commands, mut events: EventReader<GameJoinedEvent>) {
+    let Some(event) = events.iter().last() else {
+        return;
+    };
+    commands.insert_resource(LocalPlayerRes::new(event.player()));
+}
+
 fn handle_lobby_response(
+    mut commands: Commands,
     mut next_state: ResMut<NextState<MultiplayerState>>,
     mut receiver: Receiver<CreateGameRequest>,
     mut toasts: EventWriter<ToastEvent>,
@@ -118,7 +151,7 @@ fn handle_lobby_response(
         match result {
             Ok(_) => {
                 info!("Game successfully created.");
-                next_state.set(MultiplayerState::GameJoined);
+                commands.insert_resource(JoinedMarker);
             }
             Err(error) => {
                 toasts.send(ToastEvent::new(error));
diff --git a/crates/multiplayer/src/game.rs b/crates/multiplayer/src/game.rs
index fde6a457..6e416169 100644
--- a/crates/multiplayer/src/game.rs
+++ b/crates/multiplayer/src/game.rs
@@ -2,7 +2,7 @@ use std::net::SocketAddr;
 
 use bevy::prelude::*;
 use de_core::{player::Player, schedule::PreMovement};
-use de_messages::{FromGame, FromServer, GameOpenError, JoinError, ToGame, ToServer};
+use de_messages::{FromGame, FromServer, GameOpenError, JoinError, Readiness, ToGame, ToServer};
 
 use crate::{
     config::ConnectionType,
@@ -22,6 +22,7 @@ impl Plugin for GamePlugin {
             .add_event::<GameJoinedEvent>()
             .add_event::<PeerJoinedEvent>()
             .add_event::<PeerLeftEvent>()
+            .add_event::<GameReadinessEvent>()
             .add_systems(OnEnter(NetState::Connected), open_or_join)
             .add_systems(
                 PreMovement,
@@ -76,6 +77,10 @@ impl PeerLeftEvent {
     }
 }
 
+/// This event is sent when game readiness stage of the joined game changes.
+#[derive(Event, Deref)]
+pub struct GameReadinessEvent(Readiness);
+
 fn open_or_join(
     conf: Res<NetGameConfRes>,
     mut main_server: EventWriter<ToMainServerEvent>,
@@ -140,6 +145,7 @@ fn process_from_game(
     mut joined_events: EventWriter<GameJoinedEvent>,
     mut peer_joined_events: EventWriter<PeerJoinedEvent>,
     mut peer_left_events: EventWriter<PeerLeftEvent>,
+    mut readiness_events: EventWriter<GameReadinessEvent>,
     mut next_state: ResMut<NextState<NetState>>,
 ) {
     for event in inputs.iter() {
@@ -199,6 +205,7 @@ fn process_from_game(
             }
             FromGame::GameReadiness(readiness) => {
                 info!("Game readiness changed to: {readiness:?}");
+                readiness_events.send(GameReadinessEvent(*readiness));
             }
         }
     }
diff --git a/crates/multiplayer/src/lib.rs b/crates/multiplayer/src/lib.rs
index dbea8dc1..a717b221 100644
--- a/crates/multiplayer/src/lib.rs
+++ b/crates/multiplayer/src/lib.rs
@@ -15,7 +15,7 @@ use stats::StatsPlugin;
 
 pub use crate::{
     config::{ConnectionType, NetGameConf},
-    game::{GameJoinedEvent, GameOpenedEvent, PeerJoinedEvent, PeerLeftEvent},
+    game::{GameJoinedEvent, GameOpenedEvent, PeerJoinedEvent, PeerLeftEvent, GameReadinessEvent},
     lifecycle::{MultiplayerShuttingDownEvent, ShutdownMultiplayerEvent, StartMultiplayerEvent},
     netstate::NetState,
 };