What im doing wrong?
screen -
Nothing, it appears to be installed properly. What's the problem?
Umm, im new with Linux, but... Thats seriously installed? If yes, I dont know how to run it now.
The Linux version of BYOND can only host games, it cannot play them. You'd have to install the Windows version under Wine or a virtual machine.
Okay, thanks.
For directions to install under wine, see following thread.