Teaming up with NRG Energy, Phosphor Games has produced The Path to Luma, which is a pleasant puzzler about guiding a robot around small worlds.
Yes, it has a message about spreading clean energy (specifically, NRG Energy) around the world but, hey, have you seen this thing? It's very pretty.
It has 20 little planets to explore, each with pleasant Gouraud shading and little animations bringing them to life. Not to mention the choice of colours on display - ice is frozen blue, grass is lime green.
You guide the robot with a single finger and get it to activate clean energy machines to bring the planet to life. It's all about maintaining beauty.
If that isn't enough to get you interested (like, c'mon) then perhaps this will: The Path to Luma is completely free.