Blueshift is a cross-platform 3D game engine implemented in C++
Portable game engine with main focus on point-and-click adventures
Build Cross-platform Applications
Android port of PRIME roguelike
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Highly customizable library for procedural world generation
A cross-platform interpreter for many point-and-click adventure games
The Atomic Game Engine is a multi-platform 2D and 3D engine
A unique Matching Pairs game with fruits and number pairs Memory Game
Realtime 3D engine for game development
Remake of the classic Caesar III game
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
plugin-based RPG manager in C++ and Qt5
Open Game Bootstrap
Paintown is a 2d fighting game engine.
Simple sudoku game for kid.
This is a hacking style game set in the early '80s
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Conway's Game of life cross-platform implementation.
Cross platform Game Creation Software