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.
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
Five liminal levels
Five separate levels, each with its own atmosphere and secrets, make up the current content.
Unexplained space
Hallways and rooms lead to places that do not make sense, and the game gives no clear answers about them.
Ambient sound and lighting
Humming lights and familiar-looking walls shape the mood the mod aims for.
Ongoing development
The author plans further levels, mechanics and strange encounters in later updates.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
How it compares
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.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Not another Backrooms mod- [LIMINAL SPACES] | NeoForge | 26.1.2 | Client and server | 2026-08-11 |
| The Backrooms Update | NeoForge | 1.21.1 – 1.21.11 | Client and server | 2026-07-27 |
| TFam's Backrooms Essentials | NeoForge | 1.21.8 | Client and server | 2026-07-08 |
| The Backrooms(legacy) | Fabric, Forge, NeoForge and Quilt | 1.21.4 – 26.2 | Server required, client optional | 2026-06-18 |
Questions
Does the mod need Sodium and Iris Shaders?
Do servers need to install the mod?
Which game versions does the mod support?
More from henryBRM
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.
Official listing
- Owner
- henryBRM
- Published
- 2026-08-08
- Updated on Modrinth
- 2026-08-11
- Facts verified
- 2026-10-15
