LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Odamex is a free, cross-platform, modern client-server Doom engine
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Adds Discord Functionality to Lands.
An unmodified version of the MMORPG Impressive Title by KovuLKD
Visual Basic 6 2D online adventure game engine
A 2D multiplayer space shooter game
A Endless running game set in desert filled with obstacles
0 A.D. is a free, open-source, cross-platform real-time strategy game.
An online multiplayer real time strategy game
Alternative Teeworlds Client with many exciting features!
Private Online Game Launcher for Any kind of Game
Makes running a PSO server on Linux easier
X3D Prototypes for the SMUOS Component
oGame-like browser space realtime strategy game based on xNova
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.
Re-imagining of Jetpac with online multiplayer
MMORP Game for Russian players.
JAVA websocket implementation for a bomberman-like game
Grepolis utility
A statistics collection and tracking tool for Mechwarrior Online (R)