So recently Overkill, the developers of Payday 2, decided they would take a bunch of their planned paid dlc and make it all FREE. There's a catch, of course.
Basically, every milestone they hit in regards to the number of people in their steam group, they'll release a piece of dlc. Everything that isn't unlocked by mid-October we'll eventually have to pay for, so naturally our goal is to knock everything out before then. All you need is a steam account, and you don't need to own the game. If you'd take a moment to register it would help a lot.
Keep in mind one of the earlier rewards is that on October 18th the first game, Payday: The Heist, will be free for everyone (assuming a download now, own forever system that has popped up a few times) so there's definitely something in it for those of you who don't own the sequel.