LiBot Adventure is a non-profit, open source game made with Unity game engine.
The player controls the Lithium Spherical Robot (LiBot) across 4 islands (levels) collecting coins while avoiding mystical crates and stone monsters.
The also game have support for joystick.
For details about resources and source codes please access the project page: https://github.com/computationalcore/libot-adventure
I hope you enjoy!