Open Racer is going to be a 3d gaming engine based upon what originally was called Tux R acer, originally written by Jasmin Patry.

SunSpire Studios , for whom Jasmin now works, has decided to make a commercial version based on the Tux Racer 0.6.1 version of Tux Racer. This is perfectly legal and acceptable according to the terms of the GPL, since Jasmin is the original licenser and has the authority to relicense his program. (Sunspire has removed all contributed code from the 1.0 version as well, thanks for pointing this out, filip)

The goal of the Open Racer project is to continue development and improvement of the Tux Racer game from the GPLed 0.6.1 codebase with a goal of making a game-independent 3d Extreme racing engine.Open Racer will develop in a different direction than the commercial Tux Racer in order to keep from direct competition and wasteful strife with Sunspire Studios. Note that this project is not intended in any way to compete(and probably won't be able to) with the commercial Tux Racer. In fact, I suggest that you buy Tux Racer when it comes out.

License: free