Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Odamex is a free, cross-platform, modern client-server Doom engine
A 2D Real Time Strategy space combat game.
Air traffic control tower and radar simulator (solo + multi-player)
TKD Scoring Wi-Fi Server supporting Android and IPhone clients
Cooperative multiplayer graphical RPG and adventure game
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Cross-platform real-time strategy game (3D)
Adds Discord Functionality to Lands.
A 2D multiplayer space shooter game
A free 3d game for PC that does not limit the player. Fight,Build,Gain
An unmodified version of the MMORPG Impressive Title by KovuLKD
tour based strategic game
Classic America's Army
Snakes of Apocalypse is a funny multiplayer game
FiveM (GTA: V, Grand Theft Auto V Multiplayer) utilities
A fun realistic multiplayer free-and-open-source first-person-shooter!