Lucas of Just Press Start writes:
"Natural Selection 2 is the sequel to the hit Half Life 1 mod Natural Selection. Released on October 31, 2012, it is a huge leap forward for the franchise as everything was rebuilt from the ground up. The game no longer uses the Source engine – which we found out at PAX East 2012 in this interview – as the development studio behind the game, Unknown Worlds, have build their own engine especially for this title. The only question that remains is, how does this hybrid FPS/RTS compare to the original?"