An open source reimplementation of the Among Us Server
Cooperative multiplayer graphical RPG and adventure game
Odamex is a free, cross-platform, modern client-server Doom engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Air traffic control tower and radar simulator (solo + multi-player)
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
Two player Table Tennis video game made usign Python's PyGame library.
A multiplatform medieval 3D MMORPG
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Extra image set for Crossfire RPG Game
tour based strategic game
Cross-platform real-time strategy game (3D)
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Advanced map editor
A TDM GameMode
Lines a game written in Python two players through internet
Out battleship is back. Destroy everything in the space!
Snakes of Apocalypse is a funny multiplayer game