Oh maaaaaaaan, the progression here was choice. And the UI was so cool! The warnings came at exactly the right time every time.
It felt very subnautica-or-motherload-esque and I was motivated to keep playing by the progression curve which was very well tuned-- getting new flippers felt just great.
Racing to the top warnings blaring felt so exciting and put me on the edge of my seat. The controls also felt great.
I would've probably kept playing until I got to the bottom if something hadn't happened to make me lose my progress (probably on my end) oh well.