So I stumbled across Grow a while ago. Now they've produced Grow RPG, a new twist on the game.

These games are a lot of fun. Place the objects on the globe in a certain order. They will interact with each other and level up. The goal is to get all the items to their maximum level. The RPG has a little story that plays out too.

Seriously, give it a go. They're hella fun. It only took me 7 tries to complete the RPG. My advice: keep track of the the order you place the items. It will help a lot!