The Atomic Game Engine is a multi-platform 2D and 3D engine
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
plugin-based RPG manager in C++ and Qt5
Open Game Bootstrap
This is a hacking style game set in the early '80s
Source code of the game "Color Flood Filler" for Android OS
Cross-platform C framework very compact libraries and tools.
2D physics engine for games
3D Game engine
cross-platform 2d game engine
Complete ROV Control Suite
"Kenny" is an XBoard/WinBoard chess engine based on "Winglet"
Cross-platform 2D game engine
Read and write PGN format and test moves for legality.
Vector based drawing software designed for RPGs