Complete Open Source and Modular solution for MMO
Open Source MMORPG Framework
GZDoom is a feature centric port for all Doom engine games
UZDoom is a feature centric port for all Doom engine games
Recreation of the classic Grand Theft Auto III game executable
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Realism Invictus mod for Civilization IV
A distributed graph deep learning framework.
C++ Framework for slot machine games
A retro style video game engine for RPGs and adventure games.
GraphOX is awesome
SuperWikia: The Runtime/Realtime Environment for Codesmiths