F-Droid - F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.
Little Inferno - Little Inferno is an immersive, Action-Adventure, Puzzle-Platform, Surreal, Sandbox and Single-player video game created and published by Tomorrow Corporation.
APK Pure - Download apk for Android with APKPure APK downloader. NoAds, Faster apk downloads and apk file update speed. Best of all, it's free
Botanicula - Botanicula is a point-and-click adventure game developed by Amanita Design.
APKMirror - Android Market and APK Downloads
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.