diff --git a/Ragon.Common/Protocol/RagonOperation.cs b/Ragon.Common/Protocol/RagonOperation.cs
index d486d5c..adc1480 100644
--- a/Ragon.Common/Protocol/RagonOperation.cs
+++ b/Ragon.Common/Protocol/RagonOperation.cs
@@ -7,6 +7,7 @@ namespace Ragon.Common
     AUTHORIZED_FAILED,
     
     JOIN_OR_CREATE_ROOM,
+    CREATE_ROOM,
     JOIN_ROOM,
     LEAVE_ROOM,
     OWNERSHIP_CHANGED,
diff --git a/Ragon.Common/Protocol/RagonRoomParameters.cs b/Ragon.Common/Protocol/RagonRoomParameters.cs
new file mode 100644
index 0000000..218fa91
--- /dev/null
+++ b/Ragon.Common/Protocol/RagonRoomParameters.cs
@@ -0,0 +1,25 @@
+using NetStack.Serialization;
+
+namespace Ragon.Common
+{
+  public class RagonRoomParameters: IRagonSerializable
+  {
+    public string Map { get; set; }
+    public int Min { get; set; } 
+    public int Max { get; set; } 
+    
+    public void Serialize(BitBuffer buffer)
+    {
+      buffer.AddString(Map);
+      buffer.AddInt(Min);
+      buffer.AddInt(Max);
+    }
+
+    public void Deserialize(BitBuffer buffer)
+    {
+      Map = buffer.ReadString();
+      Min = buffer.ReadInt();
+      Max = buffer.ReadInt();
+    }
+  }
+}
\ No newline at end of file
diff --git a/Ragon.Common/Protocol/RagonSerializer.cs b/Ragon.Common/Protocol/RagonSerializer.cs
index d06cba5..1b70bd8 100644
--- a/Ragon.Common/Protocol/RagonSerializer.cs
+++ b/Ragon.Common/Protocol/RagonSerializer.cs
@@ -38,6 +38,24 @@ namespace Ragon.Common
       return value;
     }
     
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteBool(bool value)
+    {
+      ResizeIfNeed(1);
+      
+      _data[_offset] = value ? (byte) 1 : (byte) 0;
+      _offset += 1;
+    }
+
+    
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public bool ReadBool()
+    {
+      var value = _data[_offset];
+      _offset += 1;
+      return value == 1;
+    }
+    
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public void WriteInt(int value)
     {
diff --git a/Ragon/Sources/Game/GameRoom.cs b/Ragon/Sources/Game/GameRoom.cs
index 9b9a50f..cc581c1 100755
--- a/Ragon/Sources/Game/GameRoom.cs
+++ b/Ragon/Sources/Game/GameRoom.cs
@@ -29,7 +29,7 @@ namespace Ragon.Core
     private uint[] _allPlayers = Array.Empty<uint>();
     private Entity[] _entitiesAll = Array.Empty<Entity>();
 
-    public GameRoom(IGameThread gameThread, PluginBase pluginBase, string map, int min, int max)
+    public GameRoom(IGameThread gameThread, PluginBase pluginBase, string roomId, string map, int min, int max)
     {
       _gameThread = gameThread;
       _plugin = pluginBase;
@@ -38,7 +38,7 @@ namespace Ragon.Core
       Map = map;
       PlayersMin = min;
       PlayersMax = max;
-      Id = Guid.NewGuid().ToString();
+      Id = roomId;
 
       _plugin.Attach(this);
     }
@@ -94,8 +94,6 @@ namespace Ragon.Core
         _allPlayers = _players.Select(p => p.Key).ToArray();
         _readyPlayers = _players.Where(p => p.Value.IsLoaded).Select(p => p.Key).ToArray();
 
-        var isOwnershipChange = player.PeerId == _owner;
-
         {
           _plugin.OnPlayerLeaved(player);
 
@@ -114,34 +112,12 @@ namespace Ragon.Core
           Broadcast(_readyPlayers, sendData);
         }
 
-        if (_allPlayers.Length > 0 && isOwnershipChange)
-        {
-          var newRoomOwnerId = _allPlayers[0];
-          var newRoomOwner = _players[newRoomOwnerId];
-
-          _owner = newRoomOwnerId;
-
-          {
-            _plugin.OnOwnershipChanged(newRoomOwner);
-
-            _serializer.Clear();
-            _serializer.WriteOperation(RagonOperation.OWNERSHIP_CHANGED);
-            _serializer.WriteString(newRoomOwner.Id);
-
-            var sendData = _serializer.ToArray();
-            Broadcast(_readyPlayers, sendData);
-          }
-        }
-
         _entitiesAll = _entities.Values.ToArray();
       }
     }
 
-    public void ProcessEvent(uint peerId, ReadOnlySpan<byte> rawData)
+    public void ProcessEvent(uint peerId, RagonOperation operation, ReadOnlySpan<byte> payloadRawData)
     {
-      var operation = (RagonOperation) rawData[0];
-      var payloadRawData = rawData.Slice(1, rawData.Length - 1);
-
       _serializer.Clear();
       _serializer.FromSpan(ref payloadRawData);
 
@@ -193,6 +169,21 @@ namespace Ragon.Core
           Broadcast(_readyPlayers, sendData, DeliveryType.Reliable);
           break;
         }
+        case RagonOperation.LOAD_SCENE:
+        {
+          var sceneName = _serializer.ReadString();
+          _readyPlayers = Array.Empty<uint>();
+          _entitiesAll = Array.Empty<Entity>();
+          _entities.Clear();
+          
+          _serializer.Clear();
+          _serializer.WriteOperation(RagonOperation.LOAD_SCENE);
+          _serializer.WriteString(sceneName);
+          
+          var sendData = _serializer.ToArray();
+          Broadcast(_allPlayers, sendData, DeliveryType.Reliable);
+          break;
+        }
         case RagonOperation.REPLICATE_EVENT:
         {
           var evntId = _serializer.ReadUShort();
diff --git a/Ragon/Sources/Game/GameThread.cs b/Ragon/Sources/Game/GameThread.cs
index 7ea3d6a..e718a6f 100755
--- a/Ragon/Sources/Game/GameThread.cs
+++ b/Ragon/Sources/Game/GameThread.cs
@@ -1,7 +1,7 @@
 using System;
-using System.Collections.Generic;
 using System.Diagnostics;
 using System.Threading;
+using Ragon.Common;
 using ENet;
 using NLog;
 
@@ -29,10 +29,10 @@ namespace Ragon.Core
       var authorizationProvider = factory.CreateAuthorizationProvider(configuration);
       var dispatcher = new Dispatcher();
       _dispatcherInternal = dispatcher;
-      
+
       ThreadDispatcher = dispatcher;
       Server = new ENetServer(this);
-      
+
       _deltaTime = 1000.0f / configuration.SendRate;
 
       _roomManager = new RoomManager(factory, this);
@@ -69,7 +69,7 @@ namespace Ragon.Core
       while (true)
       {
         Server.Process();
-        
+
         _dispatcherInternal.Process();
 
         var elapsedMilliseconds = _gameLoopTimer.ElapsedMilliseconds;
@@ -109,14 +109,13 @@ namespace Ragon.Core
           evnt.Packet.CopyTo(dataRaw);
 
           var data = new ReadOnlySpan<byte>(dataRaw);
+          var operation = (RagonOperation) data[0];
+          var payload = data.Slice(1, data.Length - 1);
+          
           if (_roomManager.RoomsBySocket.TryGetValue(peerId, out var room))
-          {
-            room.ProcessEvent(peerId, data);
-          }
-          else
-          {
-            _lobby.ProcessEvent(peerId, data);
-          }
+            room.ProcessEvent(peerId, operation, payload);
+          
+          _lobby.ProcessEvent(peerId, operation, payload);
         }
         catch (Exception exception)
         {
diff --git a/Ragon/Sources/Lobby/Lobby.cs b/Ragon/Sources/Lobby/Lobby.cs
index 618c7f8..8ae052b 100644
--- a/Ragon/Sources/Lobby/Lobby.cs
+++ b/Ragon/Sources/Lobby/Lobby.cs
@@ -1,65 +1,129 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
+using NetStack.Serialization;
+using NLog;
 using Ragon.Common;
 
 namespace Ragon.Core;
 
 public class Lobby : ILobby
 {
+  private readonly ILogger _logger = LogManager.GetCurrentClassLogger();
   private readonly RagonSerializer _serializer;
+  private readonly BitBuffer _buffer;
   private readonly RoomManager _roomManager;
   private readonly AuthorizationManager _authorizationManager;
+  private readonly IGameThread _gameThread;
 
   public AuthorizationManager AuthorizationManager => _authorizationManager;
 
   public Lobby(IAuthorizationProvider provider, RoomManager manager, IGameThread gameThread)
   {
     _roomManager = manager;
+    _gameThread = gameThread;
+    _buffer = new BitBuffer();
     _serializer = new RagonSerializer();
     _authorizationManager = new AuthorizationManager(provider, gameThread, this, _serializer);
   }
 
-  public void ProcessEvent(uint peerId, ReadOnlySpan<byte> data)
+  public void ProcessEvent(uint peerId, RagonOperation op, ReadOnlySpan<byte> payload)
   {
-    var op = (RagonOperation) data[0];
-    var payload = data.Slice(1, data.Length - 1);
-
     _serializer.Clear();
     _serializer.FromSpan(ref payload);
 
+    if (op == RagonOperation.AUTHORIZE)
+    {
+      var key = _serializer.ReadString();
+      var playerName = _serializer.ReadString();
+      var protocol = _serializer.ReadByte();
+      _authorizationManager.OnAuthorization(peerId, key, playerName, protocol);
+      return;
+    }
+
+    var player = _authorizationManager.GetPlayer(peerId);
+    if (player == null)
+    {
+      _logger.Warn($"Peer not authorized {peerId} trying to {op}");
+      return;
+    }
+
     switch (op)
     {
-      case RagonOperation.AUTHORIZE:
-      {
-        var key = _serializer.ReadString();
-        var playerName = _serializer.ReadString();
-        var protocol = _serializer.ReadByte();
-        _authorizationManager.OnAuthorization(peerId, key, playerName, protocol);
-        break;
-      }
       case RagonOperation.JOIN_ROOM:
       {
         var roomId = _serializer.ReadString();
-        var player = _authorizationManager.GetPlayer(peerId);
-        if (player != null)
-          _roomManager.Join(player, roomId, Array.Empty<byte>());
+        roomId = _serializer.ReadString();
+        var exists = _roomManager.Rooms.Any(r => r.Id == roomId);
+        if (!exists)
+        {
+          _serializer.Clear();
+          _serializer.WriteOperation(RagonOperation.JOIN_FAILED);
+          _serializer.WriteString($"Room with id {roomId} not exists");
+          var sendData = _serializer.ToArray();
+          _gameThread.Server.Send(peerId, sendData, DeliveryType.Reliable);
+          return;
+        }
+
+        if (_roomManager.RoomsBySocket.ContainsKey(peerId))
+          _roomManager.Left(player, Array.Empty<byte>());
+
+        _roomManager.Join(player, roomId, Array.Empty<byte>());
+        break;
+      }
+      case RagonOperation.CREATE_ROOM:
+      {
+        var roomId = Guid.NewGuid().ToString();
+        var custom = _serializer.ReadBool();
+        if (custom)
+        {
+          roomId = _serializer.ReadString();
+          var exists = _roomManager.Rooms.Any(r => r.Id == roomId);
+          if (exists)
+          {
+            _serializer.Clear();
+            _serializer.WriteOperation(RagonOperation.JOIN_FAILED);
+            _serializer.WriteString($"Room with id {roomId} already exists");
+            
+            var sendData = _serializer.ToArray();
+            _gameThread.Server.Send(peerId, sendData, DeliveryType.Reliable);
+            return;
+          }
+        }
+
+        var propertiesPayload = _serializer.ReadData(_serializer.Size);
+        _buffer.Clear();
+        _buffer.FromSpan(ref propertiesPayload, propertiesPayload.Length);
+        
+        var roomProperties = new RagonRoomParameters();
+        roomProperties.Deserialize(_buffer);
+
+        if (_roomManager.RoomsBySocket.ContainsKey(peerId))
+          _roomManager.Left(player, Array.Empty<byte>());
+
+        _roomManager.Create(player, roomId, roomProperties, Array.Empty<byte>());
         break;
       }
       case RagonOperation.JOIN_OR_CREATE_ROOM:
       {
-        var min = _serializer.ReadUShort();
-        var max = _serializer.ReadUShort();
-        var map = _serializer.ReadString();
-        var player = _authorizationManager.GetPlayer(peerId);
-        if (player != null)
-          _roomManager.JoinOrCreate(player, map, min, max, Array.Empty<byte>());
+        var roomId = Guid.NewGuid().ToString();
+        var roomProperties = new RagonRoomParameters();
+        var propertiesPayload = _serializer.ReadData(_serializer.Size);
+        
+        _buffer.Clear();
+        _buffer.FromSpan(ref propertiesPayload, propertiesPayload.Length);
+        
+        roomProperties.Deserialize(_buffer);
+
+        if (_roomManager.RoomsBySocket.ContainsKey(peerId))
+          _roomManager.Left(player, Array.Empty<byte>());
+
+        _roomManager.JoinOrCreate(player, roomId, roomProperties, Array.Empty<byte>());
         break;
       }
       case RagonOperation.LEAVE_ROOM:
       {
-        var player = _authorizationManager.GetPlayer(peerId);
-        if (player != null)
-          _roomManager.Left(player, Array.Empty<byte>());
+        _roomManager.Left(player, Array.Empty<byte>());
         break;
       }
     }
diff --git a/Ragon/Sources/Room/RoomManager.cs b/Ragon/Sources/Room/RoomManager.cs
index c35144c..5bcc303 100644
--- a/Ragon/Sources/Room/RoomManager.cs
+++ b/Ragon/Sources/Room/RoomManager.cs
@@ -11,12 +11,12 @@ public class RoomManager
   private readonly IGameThread _gameThread;
   private readonly PluginFactory _factory;
   private readonly Logger _logger = LogManager.GetCurrentClassLogger();
-  private readonly List<GameRoom> _rooms = new List<GameRoom>();
+  private readonly List<GameRoom> _rooms = new();
   private readonly Dictionary<uint, GameRoom> _roomsBySocket;
 
   public IReadOnlyDictionary<uint, GameRoom> RoomsBySocket => _roomsBySocket;
   public IReadOnlyList<GameRoom> Rooms => _rooms;
-
+  
   public RoomManager(PluginFactory factory, IGameThread gameThread)
   {
     _gameThread = gameThread;
@@ -26,6 +26,8 @@ public class RoomManager
 
   public void Join(Player player, string roomId, byte[] payload)
   {
+    _logger.Trace($"Player ({player.PlayerName}|{player.Id}) joined to room with Id {roomId}");
+    
     if (_rooms.Count > 0)
     {
       foreach (var existRoom in _rooms)
@@ -34,20 +36,46 @@ public class RoomManager
         {
           existRoom.Joined(player, payload);
           _roomsBySocket.Add(player.PeerId, existRoom);
-          break;
+          return;
         }
       }
     }
   }
 
-  public void JoinOrCreate(Player player, string map, int min, int max, byte[] payload)
+  public void Create(Player creator, string roomId, RagonRoomParameters parameters, byte[] payload)
   {
+    var map = parameters.Map;
+    var min = parameters.Min;
+    var max = parameters.Max;
+    
+    _logger.Trace($"Player ({creator.PlayerName}|{creator.Id}) create room with Id {roomId} and params ({map}|{min}|{max})");
+
+    var plugin = _factory.CreatePlugin(map);
+    if (plugin == null)
+      throw new NullReferenceException($"Plugin for map {map} is null");
+
+    var room = new GameRoom(_gameThread, plugin, roomId, map, min, max);
+    room.Joined(creator, payload);
+    room.Start();
+
+    _roomsBySocket.Add(creator.PeerId, room);
+    _rooms.Add(room);
+  }
+
+  public void JoinOrCreate(Player player, string roomId, RagonRoomParameters parameters, byte[] payload)
+  {
+    var map = parameters.Map;
+    var min = parameters.Min;
+    var max = parameters.Max;
+    
     if (_rooms.Count > 0)
     {
       foreach (var existRoom in _rooms)
       {
         if (existRoom.Map == map && existRoom.PlayersCount < existRoom.PlayersMax)
         {
+          _logger.Trace($"Player ({player.PlayerName}|{player.Id}) joined to room with Id {roomId}");
+          
           existRoom.Joined(player, payload);
           _roomsBySocket.Add(player.PeerId, existRoom);
           return;
@@ -55,11 +83,13 @@ public class RoomManager
       }
     }
 
+    _logger.Trace($"Room not found for Player ({player.PlayerName}|{player.Id}), create room with Id {roomId} and params ({map}|{min}|{max})");
+    
     var plugin = _factory.CreatePlugin(map);
     if (plugin == null)
       throw new NullReferenceException($"Plugin for map {map} is null");
 
-    var room = new GameRoom(_gameThread, plugin, map, min, max);
+    var room = new GameRoom(_gameThread, plugin, roomId, map, min, max);
     room.Joined(player, payload);
     room.Start();
 
@@ -71,12 +101,16 @@ public class RoomManager
   {
     if (_roomsBySocket.Remove(player.PeerId, out var room))
     {
+      _logger.Trace($"Player ({player.PlayerName}|{player.Id}) left room with Id {room.Id}");
       room.Leave(player.PeerId);
       if (room.PlayersCount < room.PlayersMin)
       {
+        _logger.Trace($"Room with Id {room.Id} destroyed");
         room.Stop();
         _rooms.Remove(room);
       }
+
+      _gameThread.Server.Send(player.PeerId, new byte[] {(byte) RagonOperation.LEAVE_ROOM}, DeliveryType.Reliable);
     }
   }