It's a tribute to Tux, the famous penguin that is the Linux mascot. This game
use many Tux creations coming from TuxFactory hosted by the CrystalXP project.
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.Download F-Droid