SDL Doom

SDL Doom or SDLDoom is an old and simple port of Doom, made by Sam Lantinga in the year 1998. As its name states, it uses the Simple DirectMedia Library for the drawing functions. SDL Doom is of open source, and it was the basis of the first Symbian OS Doom port, CDoom. It doesn't support custom WAD files. Only DOOM1.WAD, DOOM2.WAD, DOOM.WAD, DOOMU.WAD, PLUTONIA.WAD and TNT.WAD are supported.