I installed Doom3 BFG edition the way it said over here. The whole procedure was carried out as instructed.
When I double clicked the executable file, my computer didn’t know how to open it so nautilus searched for an app on the Internet and suggested to download pypar2, I downloaded it opened the executable file again and PyPar2 gave me options to create something; and I did it.
I still cannot play the game.
I’m running Edubuntu 12.10, and the directory is created in an NTFS formatted drive.
P.S. Its a fresh new Edubuntu installation, I haven’t installed any updates yet.