It's a Kairosoft game! Doesn't reinvent the wheel but it's a very comfy game For the first time in a Kairosoft game I have to take my time to think and pause the game , you have to use your items so your monsters will be strong enough to repel the waves and waves of adventurers that want to take you out and steal your treasure It has the classic Kairosoft formula, Buy, Expand, Investigate, Profit but if you are not engaging in the mechanics you will be overwhelmed and want to retry