That got revised and rewritten as the FOSS game ZeroK [1]. The original is still under copyright, but the guys who did ZeroK started with it as the code base an

That got revised and rewritten as the FOSS game ZeroK [1]. The original is still under copyright, but the guys who did ZeroK started with it as the code base and then gradually removed all the proprietary code. Surprisingly for a FOSS game project as big as it is, it's still actively developed. [1] http://zero-k.info/ http://zero-k.info/