I've been reported that some of you, brave miners, have difficult in finding level 3 structures; now... if I did well my math these are the coords:
You may find the coords you're actual in on the middle top of the screen.
I will not revel which building structure correspond each coord, it's you job to find the one you're interested in.
Good luck, miner!
was found a bug in the buildings creation algoritm that causes level 3 and 4 structures to be skipped, sorry miners, will be fixed soon!