Activision today indicated that they will be giving away a free offering with Singularity. When the shooter becomes available on June 29, those who buy the game for Xbox 360 will receive a mail-in offer for a free copy of Prototype.

This is a neat marketing effort on Activision’s part, perhaps trying to drive up interest in two of their lesser known franchises.  However, they could also just be looking to reduce inventory. Last year’s Prototype was well reviewed and sold close to 600,000 units in the U.S. but sales could have been better still.