Open source simulation game based on Transport Tycoon Deluxe
Open source clone of the Age of Empires II engine
Retro game engine for creating games like it's 1997
Open source reimplementation of GTA San Andreas game engine in Unity
Odamex is a free, cross-platform, modern client-server Doom engine
MedGui Reborn is a frontend (GUI) for Mednafen multi emulator.
Graphical SRCP locking table client
SRCP model train controller
An unmodified version of the MMORPG Impressive Title by KovuLKD
Major League Baseball Simulation
Console based rcon client for minecraft servers.
DOOM / Heretic / Hexen source port with enhanced graphics and UI
Alternative Teeworlds Client with many exciting features!
A nice GUI client for Imperium
A retro multiplayer shooter
A fast, scalable, distributed game server engine/framework for C++
Low-latency, high quality voice chat for gamers
Free MMORPG