Nexuiz will be free to play for anyone with Steam and a Windows machine capable of running things powered by CryEngine 3. If the game tickles your fancy during that brief period of care/money-free play time, it can be permanently purchased for $2.50 during the next 40 or so hours.
Look, just because we found Nexuiz a little bland doesn't mean we're going to stop you from getting a good deal on it. We're not monsters. Well, Gorthax in accounting is a monster, but he doesn't bring it up and neither do we and everyone gets along fine and no one gets eaten.