Odamex is a modification of DOOM to allow players to compete with each other over the Internet using the client/server architecture. Thanks to the source code release of DOOM by id Software in December 1997, there have been many modifications that enhanced DOOM in various ways. These modifications are known as "source ports", as early modifications mainly ported DOOM to other platforms and operating systems such as Windows and Macintosh.

Odamex is based on the CSDoom 0.62 source code originally created by Sergey Makovkin, which is based on the ZDoom 1.22 source code created by Randy Heit.

Odamex is released under the GNU General Public License v2. Please read LICENSE for further details regarding the license.

Please visit the Odamex website for more information.