ONI’s one of those games with a lot of layers of game mechanics. Expect your first few colonies to go bad while you get a handle on things.
I’m lurking in the lemmy.world community I linked to above, and I’ll be happy to help you out there if you get stuck on something.
Here’s your first tip: Geyzers and Vents are one of the main sources of renewable resources in the game. They all have to be “tamed” in some way before you can collect their goodies. They also all have the same Achilles Heel that will keep them from erupting while you’re building around them; if there’s a natural tile 2 rows from the bottom and 2 rows from left it will always think its over-pressure and eruptions will be suppressed.