Source of Mana is a unique 2D MMORPG
An open source reimplementation of the Among Us Server
Open source voxel world
tour based strategic game
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Odamex is a free, cross-platform, modern client-server Doom engine
Air traffic control tower and radar simulator (solo + multi-player)
Cooperative multiplayer graphical RPG and adventure game
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
A fun realistic multiplayer free-and-open-source first-person-shooter!
A multiplatform medieval 3D MMORPG
PINN/NOOBS compatible linux distro of DreamPi for the Sega Dreamcast
GameServer is a sophisticated, game server designed for online games
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Two player Table Tennis video game made usign Python's PyGame library.
Extra image set for Crossfire RPG Game
The classic multiplayer strategy game for use as a BBS door
A Linux game inspired by the famous arcade tank battle game of the 80s
Tools for Super Tux Kart server operators
Cross-platform real-time strategy game (3D)
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers