Classic America's Army
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Air traffic control tower and radar simulator (solo + multi-player)
Odamex is a free, cross-platform, modern client-server Doom engine
Cooperative multiplayer graphical RPG and adventure game
Network gamepad/joystick
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
PINN/NOOBS compatible linux distro of DreamPi for the Sega Dreamcast
Snake with mutiplayer and AI
A multiplatform medieval 3D MMORPG
Two player Table Tennis video game made usign Python's PyGame library.
Adds Discord Functionality to Lands.
The classic multiplayer strategy game for use as a BBS door
A 2D multiplayer space shooter game
A Linux game inspired by the famous arcade tank battle game of the 80s
Visual Basic 6 2D online adventure game engine
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
PINN/NOOBS linux distro of XBandPi (XBand modem)
Free and open source Avatar Webgame made by Vietnam
An unmodified version of the MMORPG Impressive Title by KovuLKD