Blasphemer is a project to create free-media data for game engines based on the GPLed Heretic source. Currently we have full music, many graphics and a few maps and sounds, but the game is not truly playable yet. Our game data is released under a 3-clause BSD style license.

We don't currently have a recommended engine for playing Blasphemer, although ZDoom is known to work with only a few quirks. Any port that runs Heretic and extends the mapping limits should work, but there are currently some serious bugs that need to be tracked down and fixed on some of them.

Screenshot (older version):

Download Blasphemer:

IWAD (For players—requires Heretic-supporting port)
Source Data (For developers—requires DeuTex)