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BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal

Q: How do I install BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal?

Download the .mcpack or .mcaddon file. Open it — Minecraft imports it. In your world: Behavior Packs → Available → Activate, then the same under Resource Packs. In MCModsHub, or directly above on this page.

Q: What Minecraft version does BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal work with?

The listing gives Minecraft 1.21. This is the version stated by the author or source site, not something we verified ourselves.

Bedrock add-on listed for Minecraft 1.21 (behavior + resource pack). File opened and checked on 7 Oct 2026; installs from the MC Bedrock Mods app on Android.

by Moon

⬇ Download

Open in MCModsHub Get it on Google Play →

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 1

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 2

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 3

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 4

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 5

BACKROOMS THE FORGOTTEN COMPLEX Addon (26.x, 1.21) – Survive Endless Liminal — screenshot 6

BACKROOMS THE FORGOTTEN COMPLEX Addon brings the eerie dimension of endless rooms and corridors to your world. You can enter this realm through Null zones to explore iconic levels and scavenge for supplies. Players must manage their sanity while surviving dangerous hazards and hostile entities like the Bacteria.

Features:

Explore iconic areas including Level 0, Level 1, Level 2, and Level 188.
Find Null zones to travel into and out of the Backrooms.
Survive dangerous hostile entities such as the roaming Bacteria.
Collect Almond Water to restore sanity and find helpful supplies.
Wear Hazmat Suits to protect yourself against deadly environmental gases.

Screenshots:

A dark entity from Backrooms The Forgotten Complex sits in a yellow room

An empty room with blue tiled walls and white tiled floors in Minecraft

A sterile white room with grey striped walls and various industrial items

A player wearing a protective yellow hazmat suit stands in a cherry blossom forest

A tall spindly Bacteria entity stands in a grassy Minecraft field

Three glowing green exit signs stacked vertically next to dark blocks

BACKROOMS THE FORGOTTEN COMPLEX Addon Download Links

Quick facts

Edition: Minecraft Bedrock
File type: .mcpack or .mcaddon
Minecraft version listed: 1.21
How to install: Download the .mcpack or .mcaddon file. → Open it — Minecraft imports it. → In your world: Behavior Packs → Available → Activate, then the same under Resource Packs.
Where to get it: In MCModsHub, or directly above on this page.

Install steps are the general flow for this file type — How to install Minecraft Bedrock addons & mods walks through it step by step.

File checked by MCModsHub

Pack type: .mcaddon — behaviour and resource pack in one file
Manifest requires Minecraft 1.21.80 or newer
Complete pack — everything it depends on is inside the file
Download link checked 7 Sept 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

Explore more

All Addons for Bedrock All Minecraft Bedrock mods Bedrock mods for 1.21