Last updated: August 1, 2026. This monster bestiary covers every entity in Lethal Company v50+, with scene-driven tactics, failure analysis, and exact danger ratings derived from live gameplay.

The Corridor Problem

You are hauling a 120-credit painting through the main hallway on Vow. Your walkie crackles — “Bracken, second floor.” You turn the corner and freeze. The Coil-Head stands ten meters ahead. Behind you, heavy footsteps. Not your teammate’s. The Bracken’s slow, rasping breath. You stare at the Coil-Head. You glance at the Bracken. You hold eye contact one second too long. Snap. Dead.

That scenario plays out daily in Lethal Company lobbies. Monsters do not spawn randomly to scare you — they follow strict behavioral rules. This guide breaks down every entity so you recognize the trap before you walk into it.

Monster Classification System

Lethal Company entities fall into behavior groups. Knowing the group tells you the counter before you memorize the name.

  • Territorial — Attacks when provoked or cornered. Examples: Bracken, Hoarding Bug.
  • Blind Hunter — Hunts by sound, cannot see. Examples: Eyeless Dog, Thumper.
  • Look-Based — Reacts to player vision. Examples: Coil-Head, Ghost Girl.
  • Environmental — Hazard that occupies space. Examples: Hygrodere, Spore Lizard.
  • Patrol — Follows set paths, transforms. Examples: Jester, Nutcracker.
  • Ceiling/Ambush — Drops from above. Example: Snare Flea.
  • Giant — Large outdoor threat. Example: Forest Keeper.

Danger ratings scale from 1 to 10. Ratings 1–3 are low threat and easy to avoid. Ratings 4–6 need awareness but no special gear. Ratings 7–8 demand a specific counter. Ratings 9–10 are extreme threats you should avoid unless you have a plan.

Failure Analysis: Three Patterns That Kill Squads

Pattern 1 — The Bracken Stare-Down

You spot the Bracken. It raises its arms. You think, “If I keep looking, it cannot move.” You back away slowly while maintaining eye contact. Four seconds pass. It snaps your neck.

Why it happens: The Bracken does not freeze when looked at. It retreats slowly, but the timer still ticks. The correct play is to look at the ground or turn away completely, then back away. Eye contact is the trigger, not the safety.

Recovery: If you have already stared too long, close a door between you and the Bracken immediately. It cannot open doors. If no door exists, have a teammate shove it with a shovel to reset its aggression.

Pattern 2 — The Thumper Sprint

You hear the screech. Adrenaline spikes. You sprint down the corridor. The Thumper is faster than sprint speed. It rounds the corner and hits you from behind.

Why it happens: Thumpers charge faster than you can run in a straight line. Sprinting also makes noise that keeps them locked on. The correct play is to break line of sight around a corner, then crouch and stay completely still.

Recovery: If the Thumper is already chasing, juke through a door and close it. Thumpers are slowed by doors. A stun grenade freezes them for five seconds — enough time to land three shovel hits from behind.

Pattern 3 — The Jester Ignorer

Someone on voice chat says, “I hear a music box.” You are two rooms from the main entrance and you just found a gold bar. You think, “I have thirty seconds.” The Jester cranks in fifteen. The whole squad is inside. It winds up. You are all dead.

Why it happens: The Jester’s wind timer varies, and on Titan the rapid-wind variant can reach full crank in as little as fifteen seconds. The correct play is to evacuate the facility the instant you hear cranking. Loot is not worth a squad wipe.

Recovery: If the Jester is already chasing, run for the main entrance. Close doors behind you to slow its pathing. It cannot leave the building, so clear the threshold completely. After twenty seconds of no target, it returns to winding mode.

Complete Entity Database

Bracken

Also known as: The Backrooms Monster, Neck-Snapper
Danger Level: 9/10
Spawn Locations: All moons, interior only
HP: 5 shovel hits or 2 shotgun blasts
Sound Cues: Loud breathing, rustling footsteps

The Bracken is a tall, faceless humanoid with exposed ribs on its back. It stalks players room to room. When spotted, it raises its arms and retreats slowly while maintaining eye contact. Hold that eye contact for roughly three to four seconds and it enters a rage state — instant neck-snap kill. After a kill, it drags the body to a hiding spot.

Counter-Strategy:

  • Do not run. Running triggers chase behavior.
  • Look at the ground or turn away from the Bracken.
  • Back away slowly while looking away.
  • Close any doors between you and it.
  • If it attacks, a teammate can shove it off with one shovel hit.

Kill Strategy: One player baits by holding the Bracken’s attention while another hits it from behind with a shovel. One mistimed hit and the bait dies. Bring a stun grenade if you want a safer kill.

Coil-Head

Also known as: The Weeping Angel, Spring-Head
Danger Level: 7/10
Spawn Locations: All moons, interior only
HP: Invincible
Sound Cues: Metallic clicking, spring sounds

The Coil-Head is a mannequin with a spring neck and a human head. It only moves when nobody is looking at it. The instant line-of-sight breaks, it lunges forward rapidly. Contact is an instant kill.

Counter-Strategy:

  • Back away while maintaining eye contact.
  • With multiple players, take turns looking at it while the others move.
  • When rounding a corner, back around while facing it until a teammate catches sight.
  • Never look away in a dead-end room. You will die.

The Coil-Head Dance: Player A faces the Coil-Head and backs up. Player B catches line-of-sight as Player A rounds the corner. This pass lets the team navigate past it safely.

Thumper (Crawler)

Also known as: The Blind Dog, Crawler
Danger Level: 6/10
Spawn Locations: All moons, interior only
HP: 3 shovel hits or 1 shotgun blast
Sound Cues: Loud screech before charging, heavy footsteps

The Thumper is blind but hears everything — footsteps, doors, voice chat. When it detects a player, it screeches and charges at speed faster than your sprint. It can open doors. After a failed charge, it pauses to reorient.

Counter-Strategy:

  • Walk instead of running to avoid detection.
  • Close doors behind you — Thumpers are slowed by them.
  • Break line of sight around a corner, then crouch and stay still.
  • If a teammate is being chased, hit it from behind with a shovel.
  • A stun grenade freezes it for five seconds.

Pro Tip: The screech has a brief wind-up. When you hear it, immediately break line of sight. The Thumper charges to your last known position, giving you time to reposition.

Eyeless Dog

Also known as: Blind Dog, Hellhound
Danger Level: 8/10 outdoors, 6/10 if careful
Spawn Locations: Outdoor areas on all moons
HP: 5 shovel hits or 2 shotgun blasts
Sound Cues: Barking, growling, heavy panting

Eyeless Dogs are completely blind. Standing still right in front of one is safe as long as you make zero sound. They react to running footsteps, voice chat, doors, equipment sounds, and scrap dropping. Once alerted, they sprint to the sound source and attack anyone in their path.

Counter-Strategy:

  • Stop moving completely. Do not even turn your camera.
  • If you must move, crouch-walk. Crouching reduces footstep noise.
  • When a dog turns its head toward you, freeze. When it looks away, move again.
  • If chased, run to the ship and jump over obstacles to break its pathing.
  • Use a Radar Booster or Boombox to lure multiple dogs away.

Forest Keeper

Also known as: The Giant, Earth Leviathan
Danger Level: 8/10
Spawn Locations: Outdoor on Vow and harder moons
HP: 8 shovel hits or 3 shotgun blasts
Sound Cues: Tremendously loud footsteps, deep growls

Forest Keepers are enormous one-eyed giants that patrol outdoor areas. When they spot a player, they walk over and attempt a grab. The first bite deals damage; the second kills. They cannot enter the ship or the facility, but they can block the doorway.

Counter-Strategy:

  • Stay behind trees, rocks, and terrain to break line of sight.
  • Go inside the facility if one spots you — they cannot enter.
  • Time your sprint to the ship between its patrol paths.
  • A Boombox playing music lures them away from your route.
  • A stun grenade buys five seconds to run past.

Jester

Also known as: Jack-in-the-Box, Music Box Monster
Danger Level: 9/10 when wound up, 2/10 while winding
Spawn Locations: Interior on harder moons (Offense+)
HP: Invincible
Sound Cues: Music box melody while winding, loud roar when chasing

The Jester patrols in harmless winding mode for thirty to forty-five seconds, playing a music box melody. When it spots a player nearby, it stops and cranks its handle. Once fully wound, it transforms into a fast, lethal killing machine that chases the nearest player at high speed. Contact is instant death. It cannot be stopped or killed.

Counter-Strategy:

  • When you hear the music, identify its location and warn the team.
  • The instant it starts cranking, leave the facility. Go outside.
  • If it is chasing, run for the exit and close doors behind you.
  • After roughly twenty seconds of not finding anyone, it returns to winding mode.

Critical Rule: Announce a cranking Jester on voice chat immediately. One player ignoring the warning equals one dead player — and usually a squad wipe.

Snare Flea

Also known as: Ceiling Monster, Head Grabber
Danger Level: 5/10
Spawn Locations: Interior on all moons
HP: 1 shovel hit
Sound Cues: None on ceiling; muffled sounds while on player

The Snare Flea clings to ceilings and drops onto players passing below. It latches onto the head, obscuring vision and dealing damage over time until death. A struggling player can shake it off after several seconds, or a teammate can hit it off.

Counter-Strategy:

  • Look at ceilings before entering rooms. Scan with your flashlight.
  • If grabbed, mash the interact key to struggle.
  • A teammate can hit you with a shovel to remove it instantly.
  • One shovel hit on the ceiling kills it before it drops.

Hoarding Bug

Also known as: Loot Bug, Item Hoarder
Danger Level: 4/10
Spawn Locations: Interior on all moons
HP: 2 shovel hits or 1 shotgun blast
Sound Cues: Chittering, skittering legs

Hoarding Bugs collect scrap and carry it back to their nest. They are usually passive but become aggressive if you enter their nest room or stare at them too long. Their attack deals moderate damage but is not an instant kill. They will also steal items you drop on the ground.

Counter-Strategy:

  • Do not make eye contact when passing through their territory.
  • If it raises its arms in warning, back away slowly.
  • Two shovel kills it easily.
  • If it took your item, kill it or wait — it will drop the item eventually.

Pro Tip: Follow a Hoarding Bug to its nest. They pile scrap into neat stacks, often giving you more loot than random room spawns.

Hygrodere

Also known as: The Blob, Slime
Danger Level: 3/10
Spawn Locations: Interior on all moons
HP: Invincible
Sound Cues: Wet squelching, bubbling

Hygrodere is a large green slime that oozes through rooms at walking speed. Contact deals steady damage — you have about five to eight seconds before dying. It cannot be damaged or stopped, and it can split into smaller blobs.

Counter-Strategy:

  • Go around it. It is slow. You have plenty of time.
  • If it blocks a path, wait for it to move or find another route.
  • If cornered, running through it is survivable — the damage is slow.

Spore Lizard

Also known as: The Friendly Lizard, Spore Guy
Danger Level: 1/10
Spawn Locations: Interior on all moons
HP: Cannot be killed (and should not be attacked)
Sound Cues: Soft chirping

The Spore Lizard wanders the facility and completely ignores players. If approached, it releases a cloud of pink or blue spores that blur vision for five to ten seconds. It deals no damage, does not attack, and cannot kill.

Counter-Strategy:

  • Ignore it. It is harmless.
  • If spored, wait a few seconds for vision to clear.
  • Tell new players on your team that it is not a threat.

Common Mistake: New players panic when spored and waste a stun grenade. Do not. It is completely harmless.

Ghost Girl

Also known as: The Spectre, Haunting Ghost
Danger Level: 8/10
Spawn Locations: Interior on harder moons (March+)
HP: Invincible
Sound Cues: Static on the affected player’s walkie, footsteps

The Ghost Girl haunts a single randomly chosen player. Only that player can see her. She appears farther away at first, then closer and more frequently, until she touches the player for an instant kill.

Counter-Strategy:

  • Ask your team, “Can anyone see a little girl?” Only the target sees her.
  • The haunted player should leave the facility and wait near the ship.
  • Staying near teammates may delay the kill, but it will not stop it.
  • There is no known cure — she cannot be stopped, only delayed.

Nutcracker

Also known as: The Shotgun Soldier, Nutcracker Guard
Danger Level: 7/10
Spawn Locations: Mansion and lab interiors on Offense+
HP: 4 shovel hits
Sound Cues: Heavy wooden footsteps, mechanical clicking

The Nutcracker patrols hallways in a set path. Periodically it stops and performs a 360-degree scan. If it spots a player during a scan, it fires its shotgun. Two hits kill. After firing, it reloads for three seconds before scanning again. Killing it drops a shotgun and two to three shells.

Counter-Strategy:

  • Hide behind walls or furniture when it starts scanning.
  • Attack during its reload animation.
  • One player can bait the shot while another attacks from behind.
  • A stun grenade stuns through all phases for an easy kill setup.

Nutcracker Farming: Killing Nutcrackers is one of the best ways to obtain shotguns, which are both powerful weapons and valuable scrap. Shotguns sell for 90–150 credits; shells sell for 10–30 each. For a complete value database, see our Scrap and Loot Guide.

Monster Spawn Overview by Moon

Spawn rates shift dramatically depending on where you land. Here is what to expect:

  • Experimentation — The safest moon. Snare Fleas, Hoarding Bugs, and Hygrodere are common. Thumpers and Bracken are uncommon. Coil-Heads are rare. Outdoor dogs and Forest Keepers barely appear.
  • Assurance — Slightly harder. Thumpers and Bracken become common. Eyeless Dogs are uncommon. Forest Keepers still rarely patrol.
  • Vow — The difficulty spikes. Forest Keepers appear outdoors. Coil-Heads become common indoors. Jesters are rare but possible.
  • Offense — Jesters become common. Nutcrackers start appearing in mansion interiors. Forest Keepers are uncommon outside.
  • March — A balanced hard moon. Ghost Girls become uncommon. Nutcrackers are common in labs. Everything else is common or very common.
  • Rend and Dine — Eyeless Dogs are very common outdoors. Spore Lizards become rare indoors. Ghost Girls remain uncommon.
  • Titan — The hardest moon. Snare Fleas, Thumpers, Bracken, Coil-Heads, and Eyeless Dogs are all very common. Forest Keepers are common. Jesters can spawn with the rapid-wind variant, cranking in as little as fifteen seconds. Pack dogs spawn in groups of two to four.

Decision Framework: The Encounter Checklist

When you see a monster, run through this list in order. Do not skip steps.

  1. Can I kill it? If yes and you have a shovel or shotgun, consider fighting. Bracken, Thumper, Hoarding Bug, and Nutcracker are worth killing if you have backup. Coil-Head, Jester, and Ghost Girl cannot be killed — do not try.
  2. Can I avoid it silently? Eyeless Dogs demand absolute stillness. Thumpers demand walking. Forest Keepers demand breaking line of sight. Match the counter to the creature.
  3. Is there an exit within five seconds? Jesters require immediate evacuation. Brackens can be slowly kited. If the exit is far, your strategy changes from “escape” to “survive in place.”
  4. Do I have the right tool? A stun grenade turns a Thumper or Nutcracker into a free kill. A shovel turns a Snare Flea into a non-issue. No tool means you rely on movement and doors.
  5. Am I carrying high-value scrap? If you are holding a 120-credit item, your priority is preservation, not heroics. Drop the item only if the monster targets you — Hoarding Bugs will steal it, but Brackens will not.

Counter-Intuitive Truths

These go against what most players assume on their first ten hours.

  • Running from a Bracken makes it chase. The safe play is to look at the ground and back away slowly. Sprinting turns a manageable encounter into a death sentence.
  • Crouch-walking past an Eyeless Dog is louder than standing still. The correct play is absolute stillness. Any movement produces sound. Wait until the dog turns its head away, then take a single step and freeze again.
  • The Coil-Head is invincible but completely harmless while watched. The real threat is your own panic. Teams wipe because someone looks away to check their map, not because the monster outplayed them.
  • Hoarding Bugs are loot magnets. They collect scrap into piles. Stealing from their nest is profitable, but staring at the bug triggers rage. Grab and go without making eye contact.
  • Killing a Nutcracker gives you a shotgun, but firing it attracts every Eyeless Dog outside. That 90-credit shotgun becomes a liability if you blast it on the walk back to the ship. Save shells for indoor emergencies.

Emergency Quick Reference

Use this list when you encounter a monster mid-game and need a fast reminder:

  • Bracken — Look away, back away slowly. Can be killed with 5 shovel hits. Face it slowly, do not run.
  • Coil-Head — Maintain eye contact at all times. Cannot be killed. Face it and back away.
  • Thumper — Break line of sight, use doors to slow it. Can be killed with 3 shovel hits. Run and juke around corners.
  • Eyeless Dog — Stand completely still and silent. Can be killed with 5 shovel hits. Freeze on sight.
  • Forest Keeper — Break line of sight behind trees or terrain. Can be killed but takes 8 shovel hits. Run for cover or enter the facility.
  • Jester (winding) — Evacuate the facility immediately. Cannot be killed. Run for the exit.
  • Snare Flea — Look up at ceilings, hit it with one shovel swing. Can be killed. Stay alert.
  • Hoarding Bug — Avoid eye contact, move through quickly. Can be killed with 2 shovel hits. Face it only if needed.
  • Hygrodere — Walk around it. Cannot be killed. Simply walk away.
  • Spore Lizard — Ignore it entirely. Cannot be killed and is harmless.
  • Ghost Girl — Leave the facility and wait near the ship. Cannot be killed. No direct counter exists.
  • Nutcracker — Hide during its scan, attack during reload. Can be killed with 4 shovel hits. Face it with timing.

Conclusion

Knowing your monsters is the difference between a profitable run and a squad wipe. Each entity has a specific behavioral pattern and a counter-strategy. The most dangerous moments come from combinations — a Coil-Head blocking a corridor while a Bracken stalks from behind, or a Jester winding up while Eyeless Dogs patrol outside.

Master the monsters one at a time. Learn the Bracken look-away on Assurance. Practice the Coil-Head stare with a teammate. Use the terminal bestiary command to review scanned entities in-game, and always check the ceiling before you enter a room. For a full list of terminal commands, see our Terminal Commands Guide.