Bunkers are underground military installations scattered throughout the SCUM island. They contain some of the best loot in the game, but are also home to dangerous enemies. This comprehensive guide covers all bunker locations, enemy types, loot tables, and strategies to help you survive and thrive in these high-risk, high-reward areas.

Bunker Types & Overview

SCUM features three distinct types of bunkers, each with different characteristics, difficulty levels, and loot quality. Understanding these differences is crucial for planning your raids effectively.

Regular Bunkers

Description: Standard military installations marked on the map, typically guarded by mechs on the surface and puppets inside.

  • Difficulty: Medium
  • Loot Quality: Good
  • Enemy Types: Mechs, standard puppets
  • Best For: Mid-game players looking for military gear

Abandoned Bunkers

Description: Complex, multi-level facilities with high-tier loot and dangerous enemies. Require fuses to power doors and progress through different sections.

  • Difficulty: Hard to Very Hard
  • Loot Quality: Excellent
  • Enemy Types: Puppets, Razors, Mr. Brenner
  • Best For: End-game players with high-tier weapons

Hidden Bunkers

Description: Secret facilities with concealed entrances not marked on the map. Often contain unique loot that cannot be found elsewhere.

  • Difficulty: Easy to Medium
  • Loot Quality: Good to Very Good
  • Enemy Types: Possible Puppet/NPC Encounters
  • Best For: Solo players and those who enjoy exploration

Important Notes

  • Bunker loot respawns after server restarts or approximately every 30-60 minutes (server dependent)
  • Puppets inside bunkers are generally more dangerous than those found in the open world
  • Bunkers are popular PvP hotspots - always be prepared for player encounters
  • Abandoned bunkers require multiple fuses to fully explore - bring at least 5-6 fuses

Regular Bunkers

Regular bunkers are standard military installations that are marked on the map. They are guarded by mechs on the surface and contain various types of puppets inside. These bunkers are good sources of military gear, weapons, and ammunition.

Select a Bunker

D3 - Standard Bunker

Difficulty:
D3 - Standard Bunker Layout

Location

Located in sector D3, appears on interactive map as standard bunker.

Coordinates: X: 456900, Y: 345600

Enemies

  • Sentries
    2-3x (Surface)
  • Puppets
    10-15x (Interior)

Potential Loot

Item Rarity Quantity
Military Weapons Uncommon 3-5
Ammunition Common 40-60
Military Gear Uncommon 3-6
Rare Attachments Rare 1-2

Tips & Strategies

  • Standard military layout with predictable rooms and corridors
  • Watch for armored puppets in the deeper sections
  • Good mid-game loot source for military equipment

Abandoned Bunkers

Abandoned bunkers are endgame underground complexes that provide the most valuable, high-tier loot in the game. These complex facilities are multi-level structures requiring fuses to power doors and progress through different sections. While they offer the best resources on the island, they are guarded by some of the most dangerous enemies in SCUM.

Extreme Danger

Abandoned bunkers are designed for endgame players. They contain powerful enemies like Razors and the unkillable Mr. Brenner. Do not attempt to explore these bunkers without high-tier weapons, ample ammunition, and medical supplies.

Select a Bunker

C4 - Abandoned Bunker

Difficulty:
C4 - Abandoned Bunker Layout

Location

Located in sector C4, abandoned military complex.

Coordinates: X: 345700, Y: 456800

Enemies

  • Puppets
    15-20x (Various Levels)
  • Razors
    4-6x (From Vents)
  • Mr. Brenner
    1x (Lower Level)

Potential Loot

Item Rarity Location
High-Tier Military Weapons Epic Armory
Precision Rifles Epic Armory
Military Explosives Rare Storage
Phoenix Tears (Blood Sample) Legendary From Mr. Brenner
Crafting Modules Rare Throughout Bunker
Advanced Medical Supplies Uncommon Medical Bay

Tips & Strategies

  • Bring at least 5-6 fuses to power doors throughout the bunker
  • Razors emerge from vents when they hear noise - move quietly
  • Bring a team to deal with Mr. Brenner - he's nearly impossible to solo
  • Always have an escape route planned from each section

Hidden Bunkers

Hidden bunkers are secretive facilities with concealed entrances that are not marked on the map. These bunkers often contain unique loot that cannot be found elsewhere in the game. Finding these bunkers requires exploration and sometimes solving environmental puzzles.

Select a Bunker

D4 - Secret Bunker

Difficulty:
D4 - Secret Bunker Layout

Location

Located in sector D4, hidden entrance not marked on map.

Coordinates: X: 456900, Y: 456700

Enemies

  • Puppets
    5-8x (Interior)

Potential Loot

Item Rarity Quantity
Military Weapons Uncommon 2-4
Ammunition Common 20-40
Military Gear Uncommon 3-5
Medical Supplies Uncommon 5-10

Tips & Strategies

  • Hidden entrance is concealed in a rock formation
  • Low puppet count makes this good for solo players
  • Good source of medical supplies and basic military gear

Puppet Types in SCUM Bunkers

Understanding the different types of puppets you'll encounter in bunkers is crucial for survival. Each type has unique behaviors, strengths, and weaknesses that require different tactical approaches.

Standard Puppets

  • Appearance: Zombies dressed as prisoners or civilians (ragged clothing, torn faces)
  • Behavior: Slow melee attackers, formidable when in groups
  • Threat Level: Low — easy to kill, dangerous when unexpected
  • Special Loot: Low drops, high on resources

Tactics

  • Headshots are most effective
  • Melee weapons work well against individuals
  • Use doorways to funnel groups

Armored Puppets

  • Appearance: Worn body armor, helmets, military outfits
  • Behavior: Slower but tankier, resistant to bullets, knockback on hits
  • Threat Level: Medium — additional damage/bullets/headshots required

Tactics

  • Aim for the head or unarmored areas
  • Use high-caliber weapons
  • Maintain distance to avoid their strong melee attacks

High Threat Enemies

The following puppet types are extremely dangerous and should be approached with caution. Always have an escape route planned when dealing with these enemies.

Beepers / Exploder Puppets

  • Appearance: Puppets with visible explosives strapped to their body
  • Behavior: Emit a loud beeping sound when they spot you and detonate, killing themselves and damaging/destroying players, vehicles, or other puppets nearby
  • Where Found: Random, but they increase in number as you progress
  • Threat Level: Very High — even a single one can end a run

Tactics vs Beepers

  • Kill them at range before they start beeping
  • Take them out at range with suppressed shots
  • NEVER let them close distance
  • If indoors, retreat to avoid being caught in the explosion

Razors

  • Appearance: Hunched, spider-like puppets with elongated limbs and a distinctive growth on their back
  • Behavior: Extremely fast and agile, can climb walls and ceilings, emerge from vents when they detect noise
  • Where Found: Primarily in abandoned bunkers, especially in ventilation systems
  • Threat Level: Very High — can quickly overwhelm even well-equipped players

Tactics vs Razors

  • Target the growth/baby on their back for critical damage
  • Preferred Weapon is bow but if overwhelmed used a shotgun or high-caliber weapons for maximum stopping power
  • Move quietly to avoid triggering their emergence from vents
  • Never fight in tight corridors where they can surround you
  • Use doorways to limit their approach angles
  • Special Note: As everything you do makes sound typically you will want to remain as quiet as possible, there will be sound triggers that activate the razors

Mr. Brenner

  • Appearance: Massive, heavily mutated humanoid who is an unsuccessful experiment by the company TEC1, which had their creation enhanced with "Phoenix tears" and other undisclosed substances
  • Behavior: Extremely aggressive boss-type enemy, can open doors, and will react to forced open doors, too much noise, or if the alarm goes off
  • Where Found: Lower levels of abandoned bunkers, typically in his armory
  • Threat Level: Extreme — He wields a flamethrower for ranged attacks, and has highly deadly melee attacks
  • Indestructible:While not completely invincible, he is extremely resilient and can only be momentarily stunned to collect blood for phoenix tear serum

Tactics vs Mr. Brenner

  • Never engage alone — minimum 3-4 well-equipped players recommended
  • Use high-caliber weapons and explosives for maximum damage
  • Maintain distance at all costs — his melee attacks can one-shot even armored players
  • Use coordinated fire from multiple angles to prevent him from focusing on one player
  • Always have an escape route planned and keep doorways between you when possible
  • Collect his blood sample (Phoenix Tears) after defeating him for legendary crafting materials

Puppet Distribution by Bunker Type

Different bunker types have varying puppet populations. Understanding what you'll face in each bunker type is crucial for preparation.

Bunker Type Puppet Types Special Enemies Threat Level
Standard (Active) Standard Puppets, Armored Puppets Beepers Medium
Abandoned (High-Tier) All standard types plus higher concentration of dangerous variants Razors, Beepers, Brenner High
Secret / Hidden None None Low

Sector-by-Sector Bunker Map

This comprehensive map shows all bunker locations across the SCUM island. Each sector contains different bunker types with varying difficulty and loot quality. Use this reference to plan your raids effectively.

SCUM Island Bunker Atlas

Standard Bunkers
Abandoned Bunkers
Hidden/Secret Bunkers
SCUM Island Bunker Map
Data sourced from SCUM Interactive Map (scum-map.com)

Special Notes & Recent Changes

  • One bunker per grid square — Each sector typically contains one high-rank bunker..
  • Hidden/Secret bunkers — The locations of these secret bunkers are difficult to spot as they are well camouflaged and blend into the environment. Once inside, players can expect to find a single armory containing high-grade loot.
  • D4 Underground Airbase — D4 contains a large underground airbase/hangar system. Community maps provide detailed internal routes.
  • Mr. Brenner Boss — This special boss can spawn inside certain abandoned bunker rooms.
  • Recent updates — Dev updates have changed armory counts and locations. Always cross-check the interactive map before raiding.
  • Puppet density — Puppet spawns have been increased in recent updates, especially in abandoned bunkers. Bring more ammunition than you think you'll need.

Bunker Raiding Strategies

Successfully raiding bunkers requires preparation, knowledge, and the right approach. Here are some strategies to help you maximize your chances of survival and loot acquisition.

Preparation Before Raiding

Proper preparation is the key to successful bunker raids. Here's what you should do before entering any bunker:

Essential Gear

  • Weapons: Primary weapon with 150+ rounds, secondary weapon, melee weapon
  • Medical: At least 3-5 bandages, 2+ first aid kits, antibiotics, painkillers
  • Tools: Lockpicks, screwdrivers, crowbar, fuses (for abandoned bunkers)
  • Misc: Flashlight, extra batteries, food and water

Entry Tactics

How you enter a bunker can determine the success of your raid. Different bunker types require different approaches.

Standard Bunkers

  • Mech Avoidance: Study patrol patterns and time your approach during gaps
  • Distraction: Use thrown objects to draw mechs away from your entry point
  • Stealth Entry: Crouch-walk to reduce noise and avoid detection
  • Clearing: Systematically clear the entrance area of puppets before proceeding deeper

Combat Tactics Inside Bunkers

Fighting in the confined spaces of bunkers requires specific tactics and awareness. Here's how to handle combat situations effectively:

Fighting Puppets

  • Headshots: Always aim for the head for efficient kills
  • Doorway Funneling: Use doorways to funnel puppets and prevent being surrounded
  • Melee Conservation: Use melee weapons for isolated puppets to conserve ammo
  • Beeper Management: Prioritize killing beepers at range before they detonate

Dealing with Razors

  • Sound Discipline: Move slowly and quietly to avoid triggering them
  • Weak Point: Aim for the "baby" on their back for critical damage
  • Weapon Choice: Shotguns and high-caliber rifles are most effective
  • Positioning: Maintain distance and avoid being cornered

Efficient Looting Strategies

Maximizing your loot acquisition while minimizing risk is the key to successful bunker raids. Here are strategies for efficient looting:

Loot Routes

  • Priority Areas: Focus on armories, medical bays, and command centers first
  • Systematic Approach: Clear and loot one section at a time
  • Deeper Levels: In abandoned bunkers, deeper levels typically have better loot
  • Hidden Stashes: Check under beds, inside lockers, and behind furniture for hidden loot

Inventory Management

  • Value Assessment: Prioritize high-value, low-weight items
  • Ammo Management: Only take ammo for weapons you use
  • Clothing Upgrades: Swap clothing items for better ones to save inventory space
  • Temporary Stashes: Create temporary stashes near exits for excess loot

Pro Tip: Loot Specialization

When raiding with a team, assign loot specializations to each player. For example, one player focuses on weapons and ammo, another on medical supplies, and a third on crafting materials. This reduces duplicate looting and ensures you collect a wide variety of items.

Bunker Killboxs & Special Occurrences

Bunker Killboxes contain unique occurrences that provide additional challenges and rewards. This chamber can be significantly challenging and influence the risk-reward balance of bunker exploration.

Killbox Gas Trigger

After some time has passed, the killbox will become contaminated with radiation/toxic gas.

  • Protection Required: Gas masks
  • Enhanced Loot: Killboxes contain high-tier loot and a challenge.
  • Reduced Competition: Fewer players are actively doing Killboxes as they are typically out of the normal loot runs and require a seperate killbox keycard.
  • Time Limit: By Default you are given 30 minutes. This time may be affected as a server to server dependent.

Risk of Death

As time winds down in the killbox neatly displayed inside the killbox, you will notice coming from the ceiling when time is out that there will be red lasers, these will definitely kill you if you do not leave the killbox room.

  • Emergency Button: There is a panic button near the center of the room that you can promptly press to exit the killbox at any time.
  • Killbox Looting: You will need Wire Cutters, Screwdrivers, Lockpicks, and Rubber Gloves.
  • Challenge: As the timer winds down you will experience occasional puppets being dropped from the ceiling for the duration of the killbox.
  • Loot Rewards: Very High-Tier Military Loot.

Killbox Warning

If you do not exit the killbox room before the timer runs out you will die.