A game framework written with osu! in mind.
Gideros Release version
Open source library for creative expression on the web, desktop, etc.
SDL based generic 2D game engine
Ze Text Adventure game Builder : Create as you play !
Java Settlers
A 2D game engine and level editor
IGS Labs
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Open Game Bootstrap
Create symmetric sprites: browse, save to PC, or store online
Mahasona engine is an open source game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Cross platform Game Creation Software
multi-kinect system
C++ Framework for slot machine games
Kinect based controller.
Scriptable frontend for media applications.
A graphics engine + toolkit.
Cross-platform reimplementation of AMOS BASIC (runtime)
easy programming language for 2d games
A simple WinAPI game engine