Prepare to be disappointed. Its nothing like the ad. And I'm on level 25 and it's no different then level 1. U start with nothing. And get to level 12 by the end. The goblin never do anything different. No upgrades that make u go wow they mine different. Just level after level of resetting. Level 25 and I'm only clearing 2 sections. Come on. Put some effort into making it fun.