Backrooms Bounded

Backrooms Bounded is a psychological horror mod for Fabric 1.21.1, heavily inspired by the atmospheric interpretation of the Backrooms by Kane Pixels (Kane Parsons).

Explore an endless maze of yellow hallways, flickering lights, decaying wallpaper, and deafening silence. Resources are scarce, escape is uncertain, and the deeper you wander, the more reality begins to fall apart.

Unlike traditional dimension mods, Backrooms Bounded focuses on tension, paranoia, and survival.

The Backrooms are not empty.

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Trailer

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Features

Endless Procedural Backrooms

Every hallway, room, and corridor is procedurally generated, creating an infinite labyrinth with no predictable paths.

Explore:

• Endless interconnected hallways
• Multiple floor levels
• Decaying and infected wallpaper
• Flickering fluorescent lighting
• Empty lockers and forgotten objects
• Strange bacterial growths spreading throughout the environment

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Panic System

The Backrooms affect more than your surroundings.

Spending time in darkness and isolation slowly raises your panic level. As panic increases, so do the psychological effects, making survival increasingly difficult.

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Survival Horror

The Backrooms slowly wear down both you and your equipment.

• Armor becomes less reliable over time
• Resources must be scavenged from the environment
• Stealth is often more valuable than speed
• Sound matters
• Every decision can attract unwanted attention

You are not the hunter.

You are the prey.

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Organic Infection

Strange bacterial growths spread across walls, floors, and ceilings. These organisms slowly corrupt nearby structures and seem connected to whatever lurks within the Backrooms.

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Soundscape

Backrooms Bounded includes a collection of ambient sounds and environmental audio.

Expect:

• Distant ambient noises
• Unsettling atmosphere
• Dynamic panic effects
• Entity audio cues

Headphones are highly recommended.

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Entering the Backrooms

Finding the Backrooms is not guaranteed.

Reality occasionally breaks in unexpected places, creating rare opportunities to noclip beyond the normal world.

Finding a way back may prove even harder.

The methods of entering and escaping the Backrooms are intentionally left undisclosed to preserve discovery.

Just remember that you are never completely safe, even in the Overworld.

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Entities

The Bacterium

A mysterious entity roams the Backrooms.

It cannot be killed.

It cannot be permanently stopped.

It is always searching.

The longer you survive, the more dangerous it becomes.

⚠ Spoiler: Bacterium Behavior

• Uses multiple methods to track players
• Reacts to sound and environmental disturbances
• Can stalk, observe, and ambush its targets
• Adapts to player behavior
• Learns new interactions over time
• Becomes increasingly effective against common hiding strategies

The Mimic

Not every figure wandering the Backrooms is what it appears to be.

Trust becomes a dangerous thing.

⚠ Spoiler: Mimic Information

The Mimic can disguise itself as a player. Depending on your behavior, it may act as a companion, observe from a distance, or become hostile.

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Planned Features

Future updates are planned to expand the experience with:

• New entities
• New unique blocks
• Additional Backrooms areas
• Cameras and photography systems
• Expanded environmental storytelling
• New survival mechanics
• More procedural structures

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"If you hear breathing behind you, hide."