Competition Doom


Competition Doom
Codebase Chocolate Doom 3.1.0
Developer(s) Zvonimir Bužanić (fx)
Latest release 3.0.0 alpha5 (2020-05-10, 4 years ago)
Development status Active
Written in C
Target Platform Cross-Platform
License GNU General Public License v2+
Website CnDoom
Source Repository



Competition Doom, otherwise known as CnDoom, is a source port developed by Zvonimir Bužanić (fx) which focuses on features helpful for speedrunning. It is intended as an alternative to the long-running Compet-n, which requires players to use the original DOS version of the Doom executables; something that is difficult to accomplish on modern computers.


  • Removal of limits for savegames and demo recordings
  • Configurable in-game timer with millisecond resolution
  • Demo metadata
  • Detailed per-level statistics
  • Player authentication via ID number embedded in demos

Removed from v3:

  • High resolution

External links[edit]

Source code genealogy
Based on Name Base for
Chocolate Doom Competition Doom None