(But often old versions are accepted too.) If you do not have the necessary IWAD, or if you have an old, unpatched version of the IWAD in question, you will get an error message on startup. In order to play a custom level designed for any of the above games you have to have that particular game's full IWAD (loading PWAD with shareware, demo or teaser versions is disabled). In addition to them, some 'total conversion'-type mods, such as Wolfenstein 3D TC, can be played as their own IWAD however since they are not detected as such by ZDoom, you need to use the -iwad command line parameter. ZDoom will detect any of those present in its search path and let you choose at startup which game to play (if it doesn't, see the FAQ). No longer sold, originally distributed in cereal boxes. No longer sold a patch is available at Doomworld/idgames for the original English version.īuy on GOG.com - Buy on Steam - Also loads voices.wad Also, any archive format supported by ZDoom can technically be an IWAD.īuy on GOG.com - Buy on Steam - Part of Doom 3: BFG Editionīuy on GOG.com - Buy on Steam - Part of Doom 3: BFG Edition also loads nerve.wad Note that an IWAD is actually identified by its content rather than its name. Some files have conflicting names ZDoom provides you with possible aliases.Some file names are links to a page on the Doom Wiki where you will find checksums for known versions of the concerned file.

Doom 2 wad file