Pygame - Pygame is a set of Python modules designed for writing games.
SDL Game Engine - A platform independent 2d game programming framework for c/c++ programmers with least possible...
Unigine - Unigine Engine is a proprietary cross-platform middleware, developed by Unigine Corp.
Allegro - Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia...
libtwo - All-purpose c++ app prototyping library, focused towards live graphical apps and games
SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level...