In Grotto, you play the role of a soothsayer living in a cave who is occasionally visited by members of a tribal society living nearby. They come to you with problems, and they want you to present your opinion, but you can’t speak. You have access to constellations of stars, which each hold different meanings, and you must present your answers in the form of a single constellation, which the petitioners are left to interpret.
You’ll feel a bit of frustration as your intended message is missed completely in favor of something that the petitioner wanted to hear, and the same constellation might mean different things to different people, but that’s just part of the game. The story unfolds around you and its progression is communicated to you only through the explanations your petitioners give for their visit. Each is a uniquely unreliable narrator, so what you believe is for you to decide.
Two endings, and an interesting story with some occasionally unexpected consequences that might make you feel bad, so if a game giving you a case of the sads is unappealing, maybe take that into consideration.