Ok so, I've been playing this game for a little bit, and I have to say its quite addictive, its really hard to get started though, but once you reach the stage where you can start building rockets the base literally changes over to maintenance mode and unless you're working on new projects around the asteroid, you can focus on getting your rockets out and exploring (While occasionally checking on food and oxygen supply).
This is a great test of your micromanagement and planning skills, if you've always wanted to run a colony that's always on the verge of collapse, this is a great game for you!
The physics engine of the game is good, but not perfect, temperature works in weird ways in the game and disease spreads easy.

PS... Don't breathe too deep... Oxygen isn't part of the package...
PPS... Study up on some physics, you will need it!