The Backrooms Project Delta

A large Minecraft Backrooms map where you play as a scientist named James Rider who falls into the Backrooms...

File Details

The Backrooms-Project Delta-v4.0

  • R
  • May 29, 2026
  • 295.72 MB
  • 18
  • 1.21.1
  • Fabric

File Name

The Backrooms-Project Delta-v4.0.zip

Supported Versions

  • 1.21.1

I spent about a month working on this update. I made sure EVERYTHING was perfect and ready.

Added NINE new levels (go check the level list)

Added TWO new achievements: "The Deceased Ending" and "The Negative Ending."

Added some new mechanics like the Negative Meter to the negative levels

Made a new logo in Photopea

Remade the ENTIRE main menu with new buttons, images, and more

Fixed a TON of bugs thanks to @User6388565G on PMC

And a LOT more you'll have to find out! Thanks for all the support!

Want a more detailed update log? Go to the "UPDATES" room in the lobby of the map and click on "The Negative Update" (Or v4.0) sign. Then the text will show in the chat!