1. clone of the legendary first person shooter Doom Doom is a 3d shoot'em'up game, written by id Software, first released in 1993. PrBoom is a version of Doom using the Simple Direct Media layer (SDL) library, which enables it to use XFree86, Linux framebuffer console, GGI, SVGALib or even color or monochrome text consoles as display. PrBoom is based on MBF and LxDoom, which in turn is based on Boom, a freely available port of Doom for DOS, written by TeamTNT (http://www.teamtnt.com/). To play you need some maps, called "WAD", the shareware version of doom is included in the doom-wad-shareware package (non-free section). You can use any other DOOM WADs as well. From Debian 3.0r0 APT