Project Thor by Jury Shortki is a bit of an odd-ball when it comes to classification. Strictly speaking it's another castle-defense game, but replace castle with planet and defense with Arkanoid. If nothing else, Project Thor demands attention for being so genuinely unique.
It's hard to describe the gameplay, but it goes a little something like this: While defending a new planet for humanity, you control a giant shield that reflects incoming attacks while building a large temporary "outer" shield to provide auxiliary defense. Both platforms can be rotated using a control stick and "Thor"'s weaponry can be fired with a touch button that can be configured from the pause menu for more power, different firing modes or entirely different weaponry.