Botany Manor is a 3 hour first person puzzle game about growing plants while exploring a big beautiful fancy house that smells like British Bake-Off.
The main design inspiration here is obviously Gone Home, with a central family-based ambient narrative, household duck homages, and gradually unlocked doors. Many would also compare this to The Witness' soft visual style and sprawling sunny gardens.
But when you actually play this, it turns out neither of those are useful comparisons. Gone Home anchors its story focus with voice acting, narration, simpler puzzles, and wry realism. The Witness fully commits to hundreds of puzzles at the scope of an open world game. Neither of these really get at the player experience in Botany Manor.
Instead, I think Botany Manor is most usefully compared to The Case of the Golden Idol / Return of Obra Dinn.
SPOILER WARNING: this post spoils the game's overall design structure / puzzle patterns, and spoils the general story and ending.