Announcement - Valve
2013年3月21日
Play Natural Selection 2 for FREE starting now through Sunday at 1PM Pacific Time. You can also pickup Natural Selection 2 at 50% off the regular price!

Natural Selection 2 is an immersive, multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival. It seamlessly combines a shooter/FPS gameplay with a strategy (RTS) game.

If you already have Steam installed, click here to install or play Natural Selection 2. If you don't have Steam, you can download it here.


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