As you may know, Falldown is fast-paced game for Ubuntu Touch, created by Riccardo Padovani, a third party developer. Actually, the game is a clone of the Falldown Android game.
The users have to tilt the game to control a ball while it falls through holes, in order to avoid getting squashed.
The game has been coded by Ricardo, but the graphics has been designed by Michal Predotka while Tyrel Parker created the music.
Based on the Bacon 2D engine, the game is open-source, published under the GPLv3 license and will be available in the Ubuntu Touch App Store, starting with September.
As a reminder, Ubuntu Touch is a stable operating system, but it is not mature enough, compared to Android and iOS. For now, there are three Ubuntu Phones: Bq Aquaris E5 HD, Bq Aquaris E4.5, Meizu MX4, but the system is also officially supported on the LG Nexus 4 device.