Rotation Station is an Android and iOS that you can’t buy anymore because I have no interest in maintaining mobile games or paying annual fees, but it holds a special place in my heart because it was my first release. I made 100% of the code, art, 3d models, music and gameplay. I don’t even do that for jams anymore!
I also had to make it run on the iPhone 3GS in Unity 3.2 (which didn’t even have sprites). The hardest optimisation job of my career. Here’s the trailer: