Looks very promising, but it's very (very) confusing for a new player; I got stuck in the tutorial! It instructs you to mine copper and waits until you mine  18 copper, but it doesn't tell you that you need to be near the Core to do it... Then it tells you that you can get copper from the Core into the "commander ship", and this mechanic is not very intuitive. Already frustrated by those experiences, I gave up the game when I couldn't even join 2 conveyor belts (there's a piece called "joint" but it does nothing as far as I could tell).