The single player button creates a single room.
Below the Single Player button, write the name of the player who will enter the room.
The space below it is the name of the room you want to access.
Click on the multiplayer button to access the room name.
If there is an existing room with the same name, enter the room. If there is no room name, create a new room.
Only Korean, English, numbers, and some special characters are supported.