Supergiant Games has just announced that its upcoming action RPG, Bastion, will be leading off this year's Summer of Arcade on Xbox Live. Bastion will be available for the Xbox 360 on July 20, kicking off a list of five featured downloadable titles on the service. It will also be available for the PC later this year.

Bastion is an action RPG set in a devastated world which assembles itself around the main character as he faces shadowy foes, tries to rebuild, and hopes to find his lost friends. To learn more about the game, check out our hands-on impression from PAX East.