The game in question is Intruder. I managed to get the game to launch and be recognised as Spacewar by Steam, so it technically works, but there is no way to host or join a server as you have to be connected to the developer's master server or something like that, and there is no way to host a LAN server where a LAN emulator would solve the issue. Is there a way to fix this or me not being able to find a crack to this game had a reason other than the game being not very popular?