CsDoom

csDoom is a ZDoom version 1.22 based source port project that was started in the year 2000 by Sergey A. "Fly" Makovkin. He intended on replacing ZDoom's peer-to-peer multiplayer code with proper client/server based code. Makovkin achieved his goal, and by December 2000 csDoom already had decently stable and well functioning client/server multiplayer. On January 2001, he announced he no longer had enough time to work on csDoom. Since then, the project remained on a hiatus for a long time (though two new ports based on csDoom surfaced: ZDaemon and Skulltag) until the project was taken over and further developed by Denis Lukianov in 2004. The current Lukianov-developed csDoom version is 1.3.