Vincent ES 1.x is a 3D rendering library based on the OpenGL (R) ES 1.1 API specification (Common Lite) for embedded devices. ATTENTION: A new fixed pipeline implementation is being work on here: https://sourceforge.net/projects/oglsc
LxDoom is a version of the classic fps game Doom by id Software.
Specifically, it's an engine for playing Doom levels, based on the source
code released by id Software. It aims to be free, reliable, portable, and
support a wide range of levels.