Self-hosted game stream host for Moonlight
A free/open source client and automation tool for Ragnarok Online
Open source clone of the Age of Empires II engine
Open source simulation game based on Transport Tycoon Deluxe
Odamex is a free, cross-platform, modern client-server Doom engine
Graphical SRCP locking table client
SRCP model train controller
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
An unmodified version of the MMORPG Impressive Title by KovuLKD
DOOM / Heretic / Hexen source port with enhanced graphics and UI
A retro multiplayer shooter
A fast, scalable, distributed game server engine/framework for C++
A lightweight, fast and extensible game server for Minecraft
Compatible client of Ace of Spades 0.75
An OpenGL client-server game
starrydb is game server engine
An online multiplayer tactical warfare game for fast action combat!
2D game engine for traditional platform games
A C++ 3D game engine.
Single-/multi-player card game Mau Mau (similar to UNO®)