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Not another Backrooms mod- [LIMINAL SPACES]

by henryBRM

Not another Backrooms mod- [LIMINAL SPACES] is a NeoForge mod for 26.1.2 that builds a liminal-space experience across five levels, each with its own atmosphere and hidden secrets.

NeoForgeClient and serverAll rights reserved26.1.2

What it does

The mod takes a looser approach to the Backrooms idea than most entries in the genre. Instead of repeating the usual formula, it centers on one simple idea: an unsettling place that a player is never meant to fully map. Hallways seem to lead somewhere they should not, lights hum without end, and the walls feel strangely familiar. The author describes the content as a set of five levels, each hiding its own mysteries.

Required dependencies are CTR VCR, Iris Shaders and Sodium, so all three must be installed alongside the mod. A server running it needs every connecting player to have it too. Files exist for 26.1.2 only, and the latest NeoForge build is 1.0.0, published 2026-08-11. The code is not open source; it is licensed as All rights reserved. The author states that the project is still in development, with more levels, secrets and encounters planned for future updates.

Key features

  1. Five liminal levels

    Five separate levels, each with its own atmosphere and secrets, make up the current content.

  2. Unexplained space

    Hallways and rooms lead to places that do not make sense, and the game gives no clear answers about them.

  3. Ambient sound and lighting

    Humming lights and familiar-looking walls shape the mood the mod aims for.

  4. Ongoing development

    The author plans further levels, mechanics and strange encounters in later updates.

Compatibility

Latest build for each game version and loader.

26.1.21.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 3

CV
CTR VCRSummary not published
Required
SodiumA high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter.
Required
Iris ShadersA modern shader pack loader for Minecraft intended to be compatible with existing OptiFine shader packs
Required

How it compares

Full comparison

The Backrooms Update is a NeoForge mod for 1.21.1 – 1.21.11, with All rights reserved licensing and client and server environment, so it covers older versions than this mod. TFam's Backrooms Essentials is a NeoForge mod for 1.21.8 only, also client and server and closed-source. The Backrooms(legacy) covers 1.21.4 – 26.2 across Fabric, Forge, NeoForge and Quilt under the MIT License, and its environment is server required with client optional.

ModLoadersGame versionsEnvironmentUpdated
Not another Backrooms mod- [LIMINAL SPACES]NeoForge26.1.2Client and server2026-08-11
The Backrooms UpdateNeoForge1.21.1 – 1.21.11Client and server2026-07-27
TFam's Backrooms EssentialsNeoForge1.21.8Client and server2026-07-08
The Backrooms(legacy)Fabric, Forge, NeoForge and Quilt1.21.4 – 26.2Server required, client optional2026-06-18

Questions

Does the mod need Sodium and Iris Shaders?

Yes. CTR VCR, Iris Shaders and Sodium are listed as required dependencies, so all three must be installed with the mod.

Do servers need to install the mod?

Yes. Installation covers the server and each player's game.

Which game versions does the mod support?

Files exist for 26.1.2 only. The latest NeoForge build is 1.0.0, published 2026-08-11.

More from henryBRM

All projects

What the author says

You were never supposed to find this place. The lights hum endlessly. The walls feel strangely familiar. And every hallway seems to lead somewhere it shouldn't.
henryBRM, on the Modrinth page

Official listing

Owner
henryBRM
Published
2026-08-08
Updated on Modrinth
2026-08-11
Facts verified
2026-10-15