I have an extra key of the game Natural Selection 2 for PC that my friend decided he didn't want. This is a pre-order of the game and you can activate it immediately on Steam. You gain instant access to the beta, as well as the full version when it complete. For more information, click here: http://www.unknownworlds.com/ns2/
I have been trying to sell this on craigslist with no luck. Unfortunately, I have no CAG feedback, but I have eBay feedback: http://myworld.ebay.com/cloud9racer
Asking for $25 through PayPal. I will send the key immediately.