It's really hardcore to get 3 stars after third map. Game mechanics are awesome and fresh, but it's rly difficult to manage gathering resources, equipping hero and building/upgrading towers at the same time. Variety of resources gives to player many game styles, and it's hard question what actions are better: level up hero, stock on resources to improve defense, gain items or orbs etc. And i dont get completely what are these words below mini-game (Vault, Forest etc) for
 "Block Temple"){kind=icon}
 "Hexagon"){kind=icon}
 "Diamond Hollow II"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Glissaria"){kind=icon}