Addon: Sweet Dreams
Sweet Dreams turns survival into slow psychological horror with over ten encounters, a six-part nightmare story, puzzles, chases and world-scale events.
Addon author: NotBonzz.

The Dream Player behaves like another survivor: it gathers resources, crafts, builds a furnished home and remembers trespassing or theft. The Burglary attacks homes at midnight, while Psst whispers behind the player and distorts reality when watched.

Other encounters include the Blood Baby crossing the world through red fog, the Knocking Doctor and Doctor Valley, the Father, the sky-descending Puppeteer, Chester's timed escape puzzle, the Colossal Mother, a 75-block Weeping Titan and Glitch, which erases anything it touches.

Paranormal events affect doors, lights, sounds, blocks and mobs. Encounters unfold naturally while exploring, sleeping and building, and multiplayer is supported.
How to install the add-on
Download the .mcaddon or .mcpack file, open it with Minecraft and wait for the import to finish. Then enable the resource and behavior packs in the world settings. If the add-on requires experiments, turn them on before launching the world.