Free Payday: The Heist

You can get a free Steam key for Payday: The Heist game. It will be free to download on Steam for 24 hours on Thursday, October 16 at 10 a.m. PDT. If you download the game during that time, you will be able to keep the game forever.

Link: http://store.steampowered.com/app/24240/

Payday: The Heist system requirements