Another day, another Humble Bundle. This time, 2K have shacked up with the HB team and are practically giving away a bundle that includes Bioshock, The Darkness 2 and The Bureau: XCOM Declassified.
There's a $1 minimum for the base pack, which will net you the three games mentioned, but if you beat the average (currently $7.34) you'll also nab yourselves Bioshock II, Spec Ops: The Line, and Mafia II, along with a few more surprises yet to be announced.
Pay upwards of $20, and you'll also unlock the superlative XCOM: Enemy Unknown and Bioshock Infinite. As always, you can choose how your donation gets divided up between the developers, the Humble Bundle team, and the supported charities -- in this case they are the American Red Cross and Action Against Hunger.