Hi, yes, there may be some problems as it is my first try to make a multiplayer game. And I don't know why there can be a black screen. Also, you can't make your lobby, you can join the global and see the nicknames of other players (or just a grey screen if there no other players). And if you want to host local game, you create a server and need to connect to it from 2 other instances at the same device (it runs on localhost:4444)