Thanks so much for playing!!! The game is only really fully playable for parties of 2-4, but I appreciate you taking a look!
I agree that the game can be unclear about what to do. We’ve actually talked about creating a wiki for the game if we were to move forward with the project to help clarify how all the mechanics work. This is of course on top of making the game itself more intuitive.
The spacestation in cannot be mined until turn 15. And the 100 AP count is meant to be a restriction on the length of your turn in a multiplayer game. The thrusters and other tiles you can build reduce the AP costs of certain actions (like moving, shooting, etc).
Thanks for checking it out!!!