This year marks a decade since Summer of Arcade was unveiled, and to observe the occasion, Microsoft has a handful of deals on classic games. For instance, Bastion and Braid are currently 50 percent off on Xbox One. And Xbox Wire adds that Limbo is 80 percent off, Brothers: A Tale of Two Sons is 70 percent off and Castle Crashers Remastered is 20 percent off, among other games. When Microsoft first announced Summer of Arcade, the lineup started with Geometry Wars: Retro Evolved 2.