Outer Wilds is a masterpiece, but based on this comment about Subnautica, be warned that it also doesn't make clear what you're supposed to do. Unlike Subnautica though, there are no menial tasks to keep up with once you figure it out.

Just don't be afraid to check a walkthrough to give you a boost if you need it (but also don't rely on one, the joy of exploration and discovery is the best part!).