If you're looking for a surreal mix of life simulation and supernatural horror, the "Celeste's Nightmare" update provides a dark, focused diversion from the game's typical sunny landscapes. There Was A Dream by Keydare Project - Itch.io

It is common for players to conflate this update with the popular 2018 platformer . While both explore themes of nightmares and mental health:

Diving into Celeste’s Nightmare: A Spooky Expansion for There Was A Dream

: Your moral choices and actions physically alter the vibrant seas, hills, and mountains from "dream" versions to "nightmare" versions.