Game guide

Be an Anomaly or Guard Guide: Two sides, one facility

[BACKROOMS] Be an Anomaly or Guard

icce, Playing 165, Rating 74.1%

Creator icce

Playing 165

Rating 74.1%

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About

Overview

Be an Anomaly or Guard drops you into a backrooms-themed facility where one team of guards fights to contain the threat while the other side plays as powerful anomalies with unique abilities. This guide covers both sides of the fight, how weapons and armor unlock for guards, how anomaly abilities and upgrades work, and what to know about events and the map.

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What is on this page

Contents

01 Two sides, one facility Table 02 Guard weapons and armor unlocks Step 03 Live and upcoming events Events 04 Supply Drop odds Table 05 Every anomaly and what makes each dangerous Tips 06 Class upgrades at level 4 Step 07 Map awareness for both sides Check 08 In-game events Summary 09 Rules that get you banned Warn 10 Glossary Words 11 Common questions FAQ

Two sides, one facility

Table

In short Guards and anomalies play completely differently, so your approach changes depending on which side you land on.

Every round splits players between guards and anomalies. Guards earn better weapons and armor by dealing damage to anomalies, while anomalies rely on their built-in abilities. When an anomaly is taken down, a different player is chosen to fill that role at the same spot, so the anomaly threat never truly ends.

Guards	gear up with weapons and armor and work together to contain anomalies inside the facility
Anomalies	free playable characters, each with unique base stats and a distinct playstyle
Anomaly replacement	when an anomaly is defeated, another player is selected to take its place at that location
SCP-999	the one anomaly that fights alongside guards rather than against them, and can be harmed by the other anomalies

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Guard weapons and armor unlocks

Step

In short Weapon and armor slots open permanently once you hit the required damage total, so every hit you land counts toward your next unlock.

All new guards start with the Uzi as their default weapon. Better weapons and armor unlock automatically and permanently when you reach a certain amount of total damage dealt to anomalies — that damage is tracked, not spent. Keep fighting to push your total higher.

Deal damage every point of damage you deal to any anomaly counts toward your lifetime total
Hit the threshold once you reach the required amount the unlock happens automatically, no purchase needed
Check new gear unlocked weapons and armor each have their own stats and mechanics, so try them out
Use Blue Armor when available it adds 500 HP for two minutes and can only be obtained from a Supply Drop

03 Live and upcoming events Events

Events running now or coming soon. They have fixed dates, so check them first.

Upcoming Dec 31 – Mar 31

AOG Rerelease

A complete game revamp - Brand new UI overhaul - New map - Items/Guns model overhaul - Anomaly model overhauls - Sound…

See the whole schedule

Supply Drop odds

Table

In short The Dual Minigun drops from Supply Drops almost every time, but the Neon Uzi is extremely rare.

Supply Drops are the only way to get the Dual Minigun, the Neon Uzi, and the Blue Armor. Check the drop chances before deciding how much effort to put into chasing one.

Item	Drop chance	Notes
Dual Minigun	99%	Almost guaranteed from a Supply Drop
Neon Uzi	1%	Rarest item from Supply Drops
Blue Armor	Available from Supply Drop	Adds 500 HP for 2 minutes

Every anomaly and what makes each dangerous

Tips

In short Knowing what each anomaly can do helps you survive as a guard and get more out of each character as an anomaly player.

There are eight playable anomalies. All of them are free to play. Each has a different health pool, speed, and set of abilities — some are purely offensive, and SCP-999 is built entirely around supporting guards.

Tips worth knowing

Smile Room is a Keter-class anomaly with its own dedicated containment chamber.
The Boiled One moves slowly normally but becomes fast while invisible, and its passive gaze slows and damages nearby guards over time.
Ao Oni is a Euclid-class anomaly that can disguise itself using Mimicry and gains damage reduction while disguised.
SCP-173 deals 999 damage per half-second but freezes in place whenever a guard looks directly at it — though it can teleport over large distances during that window.
The Locust has 10,000 HP and enters a rage state once its damage meter fills, going from zero movement speed to very fast.
SCP-682 has the highest health of any anomaly at 12,000 HP and gains damage reduction plus movement speed when it drops below half health.
SCP-999 has only 2,500 HP, deals no damage, and uses abilities to heal and buff guards — it can also be killed by the other anomalies.
Guilt is a Keter-class anomaly with multiple attack modes: touching a guard deals 50 damage per second, while its Showerhead and Singler abilities can deal 999 damage or near-instant kills.

Class upgrades at level 4

Step

In short Reaching level 4 on any anomaly unlocks a passive trait and a new active ability that can change how the character plays entirely.

Each anomaly has a Class Upgrade path. When you hit level 4, you unlock exclusive passive traits and a new active ability.

Play through levels 2 and 3 earlier levels also bring improvements, such as SCP-682 gaining damage reduction at level 2 or Ao Oni switching its Minigun at level 3
Reach level 4 this is when the Class Upgrade unlocks, giving you both a passive trait and a new active ability
Examples of level 4 abilities SCP-173 gains Paralyzing Terror to terrify up to three guards within 40 studs; Guilt gains Remorse to send slash pulses hitting 33% of max HP each; SCP-999 gains a Protective Bubble that blocks one hit for itself and its attached host

Map awareness for both sides

Check

In short Knowing which rooms have no cameras gives anomaly players a natural hiding advantage and warns guards where their vision cuts out.

The facility is made up of 15 areas including hallways, corridors, and dedicated containment chambers. Camera coverage is not equal across the map — three anomaly rooms have none at all.

SCP-173's room has no cameras, except in the Lookout room
Ao Oni's room has no cameras
Guilt's room has no cameras
Hallway 1 has two TVs, unlike other hallways which have one
SCP-173, SCP-682, and Smile Room each have their own dedicated containment chambers
The Keter Zone contains two Euclid-class anomalies SCP-173 and Ao Oni — alongside Keter-class ones

In-game events

Summary

In short Events give you a reason to group up with other players and can reward Credits, XP, or special gear.

Events push players to form groups. Some are triggered by developers or admins, while the Light Out event happens on its own and is the most common one you will encounter.

Light Out　the most common event; the facility goes dark and SCP-999 appears in the darkness
Supply Drop　drops the Dual Minigun at 99% or the Neon Uzi at 1%
Backrooms Event　triggered by developers or admins, features Guilt as the boss; Gold Almond Water is difficult to earn here because Guilt has very high health and the time to defeat it is limited
Nuke Event　similar to the Backrooms Event but sends a global message to all players on the server
Event rewards　completing events can grant Credits, XP, or new tools

Rules that get you banned

Warn

In short Exploiting results in a permanent ban with no appeal, so play the game as intended.

The game's own description states explicitly that anyone caught exploiting will be permanently banned and cannot appeal that decision. Server restarts are normal and signal bug fixes or an update rather than anything wrong on your end.

Worth watching out for

Using exploits or cheat tools results in a permanent ban with no way to appeal

If the server restarts suddenly, wait a moment and rejoin it means bug fixes or an update just went live

Glossary

Anomaly: A free playable character on the non-guard side of the game, each with unique stats and abilities.
Guard: The player team that uses weapons and armor to contain anomalies inside the facility.
Class Upgrade: A set of improvements that unlocks at level 4 for any anomaly, adding a passive trait and a new active ability.
Keter: The object-class label for the most dangerous anomalies in the game, borrowed from SCP Foundation lore.
Euclid: The object-class label for mid-tier anomalies such as Ao Oni and SCP-173.
Supply Drop: A limited event item that gives guards either the Dual Minigun (99% chance) or the Neon Uzi (1% chance), plus a chance at Blue Armor.
Singler: Guilt's Q ability that puts it into a fast hunt mode; killing a guard during it extends the hunt duration.
Destruction: SCP-682's E ability that increases its speed and damage output, with acid that bounces off walls.

Common questions

FAQ

What happens when an anomaly is defeated?

Another player is selected to take that anomaly's place at the same location in the facility. The anomaly threat continues without a break.

Do I need to spend anything to unlock better weapons?

No money or in-game currency is spent. Weapons and armor unlock automatically and permanently once you reach the required total damage dealt to anomalies.

Which rooms should guards be most careful in?

SCP-173's room (outside the Lookout area), Ao Oni's room, and Guilt's room all have no cameras, so guards have no remote visibility there.

Is SCP-999 useful if it cannot attack?

Yes. SCP-999 heals allies with Regeneration Waves, boosts guard damage output, and at level 4 can project a Protective Bubble that blocks one hit for itself and whoever it is attached to.

What is the best way to get rare Supply Drop items?

The Dual Minigun drops 99% of the time from a Supply Drop. The Neon Uzi has only a 1% drop chance, making it the rarest weapon available from Supply Drops.

Updated Oct 10, 2026
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[BACKROOMS] Be an Anomaly or Guard icce, Playing 165, Rating 74.1%

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