Valve has announced that Bioshock 2's coming to Steam, and it's now up for pre-purchase on the site.
Those who pre-purchase the game via Steam will save 10 percent off the regular price and receive a free copy of Bioshock, and if you already own Bioshock, you may send the extra copy to a friend using Steam's Gifting functionality.
That's still not all though. To help folks prepare for Bioshock 2's multiplayer, a Bioshock 2 Four Pack is also available for pre-purchase offering 10 percent off the regular price plus four free copies of the original game.
Holy plasmid action, Batman.
The 2k shooter is out on February 9 for PS3, 360 and PC.