The annual Xbox 360 Summer of Arcade starts on August 7th:
Brothers: a Tale of two Sons launches August 7th for 1,200 Points
Charlie Murder launches August 14th for 800 Points
Flashback launches August 21st for 800 Points
Teenage Mutant Ninja Turtles: Out of the Shadows launches August 28th for 1,200 Points
As a bonus, buy any two of the above Summer of Arcade games and receive a Souls Pack for Ascend: Hand of Kul for free.