Ubisoft and CBS Consumer Products have announced that CSI: Crime Scene Investigation on Facebook now has over two million monthly active users. They’re also announcing a cross-promotion for the CSI: Crime Scene Investigation: Crime City social game.

Players are able to watch the TV episodes, which will give out clues that will unlock special bonuses in the game. These various answers will unlock free UbiCredits that provide energy points in the game.

To find out more, visit facebook.com/CSIcrimecity.