Some of the best games on Android are now really cheap. Google has just launched a summer sale in the Play store, and the deals include some classic mobile titles, including games like Monument Valley, Republique, and Hitman Go. You can even get older titles like Age of Zombies for as little as $0.10, alongside a host of old-school SNK arcade games. Unfortunately, there's no hub page where you can quickly scan all of the available games, but we've listed some of the better deals below; you can also search the store for "play games summer sale" for even more. We're also not sure how long these sales will last — so if you see anything you like, act quickly.