Once in the desired Game Lobby, press the 'Create' button to create your own room for that game. You can give your room its own name, limit how many players may join, and also password protect it so only those you allow can join.

You can also join any room in the Game Lobby, if it is unlocked. You may, however, need to know their password.

To join a different Room or Lobby, you must first Leave the room you are in (note : you must Destroy the room if you created it).

The owner of each room can also Reject any player by right mouse-clicking on the player and selecting "Reject".