The FreeSpace 2 Source Code Project is the project of a group of programmers currently maintaining and enhancing the game engine for the space combat simulator FreeSpace 2, developed by Volition. The source code was released in 2002, and is used by several projects. Most prominent among these are games based on the Babylon 5 and 2004 Battlestar Galactica universes.
WWW: https://github.com/scp-fs2open/fs2open.github.com