Free-to-play multiplayer version of the 8-bit classic M.U.L.E.
Adds Discord Functionality to Lands.
GameServer is a sophisticated, game server designed for online games
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.
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
A 2D multiplayer space shooter game
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
An unmodified version of the MMORPG Impressive Title by KovuLKD
FiveM (GTA: V, Grand Theft Auto V Multiplayer) utilities
Alternative Teeworlds Client with many exciting features!
This lets you create worlds more easily and to recreate a world
Makes running a PSO server on Linux easier
oGame-like browser space realtime strategy game based on xNova
X3D Prototypes for the SMUOS Component
Set of utilities for making Xpilot easier to operate
Utilities for running the Pokemon Online server on Ubuntu
Super Smash Flash 2 is the most must-play battle game with 28 classic
Computer-assisted miniature tank game.
JAVA websocket implementation for a bomberman-like game
MMORP Game for Russian players.
Raspberry Pi based PC - DC server
3D FPS Digital Paintball 3 Multiplayer Online Game
Counter-Strike Global Offense Web Administration