The Queen ARC machine in official ARC Raiders artwork

ARC machine field guide

ARC Raiders Enemies & Bosses

Identify a machine by behavior before choosing the fight. This field guide separates scouts, ambushers, artillery, armored ARC and boss-scale threats.

Updated August 11, 2026 Official sources cited Community guide
12Machines indexed
3Threat scales
Weak spotsAim priority
AudioEarly warning

ARC Machine Index

Official descriptions are condensed into the behavior signal a Raider needs during an encounter.

Interior ambusher

Tick

A small eight-legged ARC that clings to walls and ceilings before jumping an unaware Raider.

Flying scout

Snitch

Aerial surveillance ARC that calls reinforcements after spotting suspicious activity.

Ground assault

Leaper

A large patrol machine defined by a destructive leap attack and sudden gap-closing pressure.

Indirect fire

Bombardier

Works with Spotter drones to designate Raiders for lethal mortar attacks.

Boss ARC

Queen

An enormous machine that defends the Harvester and can punish unprepared groups with stomp pressure.

Boss ARC

Matriarch

An imposing machine introduced with Stella Montis and encountered under a specific map condition.

Close quarters

Shredder

A fast ARC introduced at Stella Montis for dangerous interior and close-range encounters.

Flying hunter

Firefly

A persistent flying flame threat that can chase Raiders into cover instead of holding distance.

Focused predator

Comet

A rolling explosive ARC with armor plates, an exposed inner weak point and high burst threat.

Riven Tides

ARC Turbine

A floating ARC introduced with Riven Tides whose loot value was increased in Live Update 1.36.0.

Flying ARC

Wasp

One of the Rust Belt flying ARC types and a recurring Feat target in official game examples.

Threat Classes

Use size only as a first clue; detection behavior and attack pattern are often more important.

ClassExamplesPrimary response
Detection and pursuitSnitch, Firefly, WaspBreak line of sight, remove surveillance quickly and avoid letting an alert escalate.
Ambush and close pressureTick, Leaper, Shredder, CometPreserve movement space and learn the cue that precedes the machine's committed attack.
Armored and indirect fireBastion, Bombardier, RocketeerFight from hard cover, attack vulnerable components and avoid static open trades.
Boss-scale ARCQueen, MatriarchTreat the encounter as an objective requiring preparation, ammunition depth and an exit plan.

Official Sources

Enemy names and behavior notes are based on official overview, update and developer-tip pages.