The company putting out Afterfall: InSanity are trying to raise 10 million pre-orders for their game at the cost of $1 for the whole game. If they don't hit 10 million all pre-order dollars will go to Amnesty International and you'll be able to buy the game for list price sans the dollar you put up on the pre-order. So basically if they hit their mark, you'll get this pc game for $1. Else you're donating a dollar to charity.
I'm pre-ordering a couple copies. If they hit their mark, awesome. Nothing wrong with a cheap pc game. If not, I don't mind donating a couple bucks to charity.