CDoom

CDoom is a set of two Doom source ports for DOS by Carlos Guariglia. Version 1.9 is a clone of doom2.exe, while version 2.05 is based upon MBF. Both versions are intended to be compiled with DJGPP and played under DOS, and therefore will have problems running under recent versions of Microsoft Windows.

Features in v1.9

 * a -finalcomp parameter to properly play back demos recorded with the doom2.exe that is supplied with Final Doom
 * according to the author, it is the smallest engine in Doom history

Features in v2.05

 * true 3d gameplay including 3D floors
 * supports jumping and flying
 * extra cheat commands
 * can autogenerate a missing blockmap

Common Features

 * maximum compatibility with doom2.exe demos
 * new music subsystem that supports opl2/opl3/mpu401 playback
 * cheats are available in nightmare skill level