GeckoLib Needed by Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar
requiredMatching file found Matched file: geckolib-forge-1.20.1-4.8.4.jar
Back to mods 
CurseForge · Minecraft mod
Yet Some Other Backrooms
Yet Some Other Backrooms Mod, among many others.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Yet Some Other Backrooms release should I use?
Latest stable file Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar
Game version 1.20.1
Loader Forge
Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Yet Some Other Backrooms required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar need?
Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar. Change the file and its required mods may change too.
Install GeckoLib first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Yet Some Other Backrooms without breaking your instance.
Built for Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install GeckoLib first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar. It opens that exact file at the source.
About this project
What does Yet Some Other Backrooms add?
This is a backrooms mod. It's Yet Some Other Backrooms mod, among many others.
Currently, as of the most recent version, the mod has 18 different and infinite levels, many are in the works. Beware, as they may be populated... (Generation ONLY happens when in survival OR adventure mode)
After dying, one will be transported to the Backrooms. In there, you will have to fend for your survival and explore as much as possible in order to live (or leave?). You can't get out of there once you enter. Getting out isn't much of an option but fear not as you can noclip to other levels!
How ? Just explore a level enough (be far away enough from your spawn location) then try noclipping by pressing 'N' and if you're lucky enough you'll get transported to another level.
After years of development and many fails, I decided to make this mod public as before it was semi private.
The discord's quite dead right now, so how about you come join it ? https://discord.gg/pG2CjVnsc3
Questions you might have will be answered over there, the source code is also available for free inside the server.
Project description from CurseForge.
Pick your setup
Yet Some Other Backrooms by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Yet Some Other Backrooms versions and loaders
Yet Some Other Backrooms Mod 1.0.3b (forge-1.20.1).jar
6 Sept 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · matched Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Yet Some Other Backrooms Mod 1.0.3
Yet Some Other Backrooms Mod 1.0.3 (forge-1.20.1).jar
30 Aug 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Yet Some Other Backrooms Mod 1.0.2
Yet Some Other Backrooms Mod 1.0.2 (forge-1.20.1).jar
28 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Looking for an older file? The official CurseForge project page is in Resources.
mod CurseForge + Modrinth · Minecraft
Mobs Properties Randomness
Randomize mobs properties. Add Potion Effects, apply Attribute Modifiers, add Equipment and more!
mod CurseForge · Minecraft
Archimedes Mod
Archimedes Mod is an adventure-focused Minecraft Forge 1.20.1 mod that adds mysterious Nether castles, underwater pirate ships, rare treasures, custom weapons, music discs, and more.
mod CurseForge + Modrinth · Minecraft
Carpet-FGA-Addition
An AI-powered Carpet extension mod packed with practical utilities, including longer player name support and fake-player area mining.