Essentially a very cleverly disguised visual novel, though I worry that description isn't giving it enough credit. Imagine Subnautica played entirely on a topographical map, with a heavy dose of climate anxiety and Jeff VanderMeer/China Mieville-esque sci-fi. If the perspective sounds restrictive, don't worry; any doubts have will melt away as soon as you lose yourself in the writing and visuals. The sound design is excellent as well. I could nitpick but it's not worth it in the face of something so unique.