Ive played about 150 hours worth of this game. It is incredibly fun. I love the random generated maps and making houses. You may need to look up guides because im not sure if you're aware, but there are certain rules to making 'proper' sctructures that allow NPC to move into them.

For example. Building a 'house' will require you to build an 8 by 10 ( i believe) perimeter and then use wood to make walls. Dirt walls will not work. Once you have built that, you must then place a door at each end. If succesful, you will notice an NPC move into your house and he will stick around. You can then add onto it and build rooms. A room will allow for another NPC to move in. This doesnt happen instantaneously, but you will notice someone occupy the room sooner or later. Bosses can be triggered by performing certain actions. For example. Khutulu can be summoned by using the "eye of Khutulu" and other bosses can be summoned by destroying objects.

The game is incredibly vast and item crafting and creation is also quite fun. The challenge is getting really deep into the caves you dig to mine the minerals required for creation of weapons and tools. Tunneling all the way to HELL is where you will be able to farm the best materials, but you will need a certain pickaxe to be able to mine it.

Very fun game.