The best First-Person Shooter alternative to Crispy Doom is GZDoom, which is both free and Open Source. If that doesn't suit you, our users have ranked seven alternatives to Crispy Doom and three of them are First-Person Shooters so hopefully you can find a suitable replacement. Other interesting First-Person Shooter alternatives to Crispy Doom are Zandronum and Odamex.
ZDoom is a family of enhanced ports of the Doom engine for running on modern operating systems. It runs on Windows, Linux, and OS X, and adds new features not found in the games as originally published by id Software.
GZDoom is the most popular Windows, Mac & Linux alternative to Crispy Doom.
GZDoom is the most popular Open Source & free alternative to Crispy Doom.
Zandronum is a multiplayer oriented port, based off Skulltag, for Doom and Doom II by id Software.
Odamex is a free, cross-platform modification of the Doom engine. A copy of Doom, Doom II, Freedoom or Chex Quest is recommended to play it.
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