Doom Wiki:Source material

General reference
Below is a list of material that might be useful for general reference:
 * The Unofficial DOOM Specs
 * The Page of Doom

GFDL resources
The following may be copied directly to this wiki:


 * Doom-related articles on Wikipedia. Note however that many of these need to be trimmed from information or wording that is unnecessary here.
 * The ZDoom documentation project