Atom - made with Kotlin -

Atom is a game about atoms. Each level consists of a proton in the center, electrons spinning around of it, and a neutron that you control. The objective is to reach the nucleus of the atom avoiding the electrons.

This game's got 50 fun levels that start easy but keep getting harder. With sweet minimal design and music, and Google Games Achievements to compete with your friends.

And it's made with Kotlin and ReactiveX! Only the newest stuff!