Linear progression at its finest
Reputation ranks
Ranks only ever go up; points can drop but your rank stays.
About reputation ranksThe progression is pretty rigid but the the challenges are unique and rewarding.
It's about automating everything from the get go. At the start you're limited to andesite components from create which creates a fun challenge. The chapters are not too long so that the limitations are not too annoying. There was only one thing I didn't like - the end game, as at least at the time I was playing, the rocket mod was a bit unstable, unintuitive and felt a bit off.