Source port cheat codes, Doom Wiki

To activate a cheat in most versions, one simply types the code while playing (this also applies while in automap mode). After the last letter has been entered, a message of acknowledgement will appear at the top of the screen. The status bar, face, and ingame view may also change, depending on the effects of the code. All of the codes for the original game work in all ports, unless otherwise noted. Cheat codes in Vanilla Doom are disabled on the "Nightmare!" skill level, except for the iddt and

How to Play the Original 'Doom' for Free

Steam Community :: Guide :: All console commands for GZDoom, ZDoom

Infraworld - The Hatehammer - The Doom Wiki at

Knee-Deep in the Ports: Ranking the Best (and Worst) Versions of

Angry Quilt III: Big Game Hunter - The Doom Wiki at

Source port - The Doom Wiki at

Doom source code files, Doom Wiki

List of Doom ports - Wikipedia

MAP07: Dead Simple (Doom II), Doom Wiki