ARC RAIDERS

Plan the raid. Loot the Rust Belt. Get topside and back alive.

Expeditions & Projects

The prestige system, community and personal projects with their phase requirements, weekly Trials, daily Feats and the full achievement list.

Achievements0/51 (0%)

Expedition 1

expedition2025-10-30 to 2025-12-17unverified0/6 phases

Expeditions are perilous. Your Raider will carry all their possessions into the unknown beyond the Rust Belt. In return, your next Raider gains a unique edge that lasts until the next Expedition departs. First expedition, shipped with the Cold Snap update timeframe. Bonus skill points originally computed from stash value (1 point per 1,000,000 stash credits, max 5); the departure objective in game data is a 5-tier ARC damage challenge (5k/10k/30k/50k/100k) rewarding expedition skill point tokens.

Phase 1: Foundation

Building the base structure and frame of the caravan

Metal Parts x150Rubber Parts x200ARC Alloy x80Steel Spring x15

Phase 2: Core Systems

Connecting wiring, ventilation, and essential power systems

Durable Cloth x35Wires x30Electrical Components x30Cooling Fan x5

Phase 3: Framework

Building walls and roof, installing core systems, and defining the interior layout

Light Bulb x5Battery x30Sensors x20Exodus Modules

Phase 4: Outfitting

Adding storage, workbenches, utilities, and personal touches

Humidifier x5Advanced Electrical Components x5Magnetic Accelerator x3Leaper Pulse Unit x3

Phase 5: Load Stage

Loading the caravan with vital supplies. Combat gear, survival equipment, provisions, and repair materials are needed to fully prepare for the Expedition

Combat Items worth 250,000 coinsSurvival Items worth 100,000 coinsProvisions worth 180,000 coinsMaterials worth 300,000 coins

Phase 6: Departure

Your caravan is fully stocked and your Raider is ready to depart on the Expedition! Upon departure, all items remaining in your Raider’s stash will be contributed to the Expedition, and your next Raider can earn up to five skill points based on the total value of those items.

ARC damage tiers 5,000, 10,000, 30,000, 50,000, 100,000

Departure window

  • approx. 2025-12-10 to 2025-12-17 (project end date 2025-12-17 08:00 UTC); build phases unlocked over ~60 days

Expedition 2

expedition2025-12-22 to 2026-02-25unverified0/6 phases

Expeditions are perilous. Your Raider will carry all their possessions into the unknown beyond the Rust Belt. In return, your next Raider gains a unique edge that lasts until the next Expedition departs. Second expedition. ARCTracker UI notes a Seasons/Expeditions overhaul with the Shrouded Skies update (2026-02-24).

Phase 1: Foundation

Building the base structure and frame of the caravan

Metal Parts x150Plastic Parts x200ARC Alloy x80Steel Spring x15

Phase 2: Core Systems

Connecting wiring, ventilation, and essential power systems

Durable Cloth x35Wires x25Electrical Components x20Cooling Coil x4

Phase 3: Framework

Building walls and roof, installing core systems, and defining the interior layout

Light Bulb x4Battery x30Shredder Gyro x10Exodus Modules

Phase 4: Outfitting

Adding storage, workbenches, utilities, and personal touches

Frequency Modulation Box x5Advanced Electrical Components x5Ion Sputter x3Leaper Pulse Unit x3

Phase 5: Load Stage

Loading the caravan with vital supplies. Combat gear, survival equipment, provisions, and repair materials are needed to fully prepare for the Expedition

Combat Items worth 200,000 coinsSurvival Items worth 100,000 coinsProvisions worth 150,000 coinsMaterials worth 300,000 coins

Phase 6: Departure

Your caravan is fully stocked and your Raider is ready to depart on the Expedition! Upon departure, all items remaining in your Raider’s stash will be contributed to the Expedition, and your next Raider can earn up to five skill points based on the total value of those items.

ARC damage tiers 5,000, 10,000, 30,000, 50,000, 100,000

Departure window

  • ends 2026-02-25 08:00 UTC (project window 2025-12-22 to 2026-02-25)

Expedition 3

expedition2026-03-02 to 2026-04-28unverified0/6 phases

Expeditions are perilous. Your Raider will carry all their possessions into the unknown beyond the Rust Belt. In return, your next Raider gains a unique edge that lasts until the next Expedition departs. Third expedition; ended alongside the Riven Tides update.

Phase 1: Foundation

Building the base structure and frame of the caravan

Metal Parts x150Chemicals x100ARC Alloy x80Steel Spring x15

Phase 2: Core Systems

Connecting wiring, ventilation, and essential power systems

Durable Cloth x30Wires x25Electrical Components x20Industrial Charger x3

Phase 3: Framework

Building walls and roof, installing core systems, and defining the interior layout

Coffee PotBattery x25Firefly Burner x5Exodus Modules

Phase 4: Outfitting

Adding storage, workbenches, utilities, and personal touches

Broken Guidance SystemAdvanced Electrical Components x5Breathtaking Snow Globe x3Bombardier Cell x2

Phase 5: Load Stage

Loading the caravan with vital supplies. Combat gear, survival equipment, provisions, and repair materials are needed to fully prepare for the Expedition

Combat Items worth 200,000 coinsSurvival Items worth 100,000 coinsProvisions worth 150,000 coinsMaterials worth 300,000 coins

Phase 6: Departure

Your caravan is fully stocked and your Raider is ready to depart on the Expedition! Upon departure, all items remaining in your Raider’s stash will be contributed to the Expedition, and your next Raider can earn up to five skill points based on the total value of those items.

ARC damage tiers 5,000, 10,000, 30,000, 50,000, 100,000

Departure window

  • ends 2026-04-28 08:00 UTC (project window 2026-03-02 to 2026-04-28)

Expedition 4

expedition2026-04-29 to 2026-07-07unverified0/6 phases

Expeditions are perilous. Your Raider will carry all their possessions into the unknown beyond the Rust Belt. In return, your next Raider gains a unique edge that lasts until the next Expedition departs. Fourth expedition reworked rewards: mystery rewards and temporary blueprints from the ARC-damage challenge, 150 Raider Tokens per departure objective (750 total for a full clear; tokens are permanent), +12 stash slots (48 extra total after four), and the first step of the Zenith Outfit. Consecutive lineage buffs (XP boost, Scrappy materials, repair value) cap at three levels.

Phase 1: Foundation

Building the base structure and frame of the caravan

Metal Parts x150Chemicals x100ARC Alloy x80Canister x15

Phase 2: Core Systems

Connecting wiring, ventilation, and essential power systems

Durable Cloth x30Oil x25Electrical Components x20Industrial Charger x3

Phase 3: Framework

Building walls and roof, installing core systems, and defining the interior layout

ARC Motion Core x20Speaker Component x15Turbine Compressor x5Exodus Modules x2

Phase 4: Outfitting

Adding storage, workbenches, utilities, and personal touches

Portable TVAdvanced Electrical Components x5"Sirena Dorata" Ship Model x2Vaporizer Regulator x3

Phase 5: Load Stage

Loading the caravan with vital supplies. Combat gear, survival equipment, provisions, and repair materials are needed to fully prepare for the Expedition

Combat Items worth 200,000 coinsSurvival Items worth 100,000 coinsProvisions worth 150,000 coinsMaterials worth 300,000 coins

Phase 6: Departure

Your caravan is fully stocked and your Raider is ready to depart on the Expedition! Upon departure, all items remaining in your Raider’s stash will be contributed to the Expedition, and your next Raider can earn up to five skill points based on the total value of those items.

ARC damage tiers 5,000, 10,000, 30,000, 50,000, 100,000

Departure window

  • 2026-07-07 to 2026-07-21 (two weeks)

Expedition 5

expedition2026-07-07 to 2026-09-22unverified0/6 phases

Expeditions are perilous. Your Raider will carry all their possessions into the unknown beyond the Rust Belt. In return, your next Raider gains a unique edge that lasts until the next Expedition departs. Fifth and final expedition of 2026 (Live Update 1.45.0). First expedition with an OPT-IN quest reset: quest progress is kept by default and you choose whether to reset it when departing. Completing all five expeditions fully unlocks the Zenith Outfit and maxes bonus stash slots at 60. Expeditions are paused after this cycle until early 2027; earned consecutive buffs persist through the pause. The repo project record ends 2026-09-22 but the official window closes 2026-09-29.

Phase 1: Foundation

Building the base structure and frame of the caravan

Metal Parts x150Plastic Parts x100ARC Alloy x80Magnet x15

Phase 2: Core Systems

Connecting wiring, ventilation, and essential power systems

Durable Cloth x30Duct Tape x25Mechanical Components x20Voltage Converter x10

Phase 3: Framework

Building walls and roof, installing core systems, and defining the interior layout

ARC Circuitry x20Speaker Component x15Bastion Cell x5Magnetic Accelerator x3

Phase 4: Outfitting

Adding storage, workbenches, utilities, and personal touches

Radio x2Advanced Mechanical Components x5Lance's Mixtape (5th Edition) x2Rocketeer Driver x3

Phase 5: Load Stage

Loading the caravan with vital supplies. Combat gear, survival equipment, provisions, and repair materials are needed to fully prepare for the Expedition

Combat Items worth 200,000 coinsSurvival Items worth 100,000 coinsProvisions worth 150,000 coinsMaterials worth 300,000 coins

Phase 6: Departure

Your caravan is fully stocked and your Raider is ready to depart on the Expedition! Upon departure, all items remaining in your Raider’s stash will be contributed to the Expedition, and your next Raider can earn up to five skill points based on the total value of those items.

ARC damage tiers 5,000, 10,000, 30,000, 50,000, 100,000

Departure window

  • 2026-09-08 13:00 CEST / 11:00 UTC to 2026-09-29 10:00 CEST / 08:00 UTC (three weeks, one week longer than before); NO Late Call sign-up window

Trophy Display

personal2025-08-25 to 2049-12-310/5 phases

Use ARC parts to build a display of your hunting trophies, in order to not-so-subtly shut down anyone who questions the bold tales of your topside adventures. Permanent personal project: submit ARC trophy parts for per-item rewards (Raider Tokens, blueprints, gear). Added to game data 2026-01-29.

Phase 1: Roaming Threats

The earthbound machines rolling and trudging across the surface, forcing Raiders to watch their every step.

Rusted Bolts x3Pop Trigger x15Tick Pod x15Surveyor Vault x5

Phase 2: Soaring Menaces

The airborne machines dominating the skies, raining peril down upon unsuspecting Raiders.

Spotter Relay x10Expired Respirator x3Wasp Driver x20Hornet Driver x15

Phase 3: Ferocious Foes

A clear escalation of topside dangers, these machines have doled out severe punishments to overconfident Raiders.

ARC Performance Steel x10Shredder Gyro x5Leaper Pulse Unit x10Bastion Cell x5

Phase 4: Dominant Dangers

The vicious threats leaving behind a trail of downed Raiders; dominating their surroundings with tenacity and grit.

ARC Synthetic Resin x10Magnetic Accelerator x10Rocketeer Driver x8Queen Reactor x3

Phase 5: Imposing Behemoths

The colossal foes making the earth tremble, and the epitome of big-game hunting.

Exodus Modules x5Geiger Counter x3Bombardier Cell x8Matriarch Reactor x3

Rewards

  • Roaming Threats: Rusted Bolts x3 -> Mod Components x10
  • Roaming Threats: Pop Trigger x15 -> Power Rod x3
  • Roaming Threats: Tick Pod x15 -> Raider Tokens x10
  • Roaming Threats: Surveyor Vault x5 -> Light Gun Parts Blueprint x1
  • Soaring Menaces: Spotter Relay x10 -> Vita Spray x3
  • Soaring Menaces: Expired Respirator x3 -> Photoelectric Cloak x3
  • Soaring Menaces: Wasp Driver x20 -> Raider Tokens x20
  • Soaring Menaces: Hornet Driver x15 -> Vita Shot Blueprint x1
  • Ferocious Foes: ARC Performance Steel x10 -> Kinetic Converter x1
  • Ferocious Foes: Shredder Gyro x5 -> Anvil Splitter x3
  • Ferocious Foes: Leaper Pulse Unit x10 -> Raider Tokens x30
  • Ferocious Foes: Bastion Cell x5 -> Shotgun Silencer Blueprint x1
  • Dominant Dangers: ARC Synthetic Resin x10 -> Bobcat IV x1
  • Dominant Dangers: Magnetic Accelerator x10 -> Wolfpack x5
  • Dominant Dangers: Rocketeer Driver x8 -> Raider Tokens x40
  • Dominant Dangers: Queen Reactor x3 -> Bobcat Blueprint x1
  • Imposing Behemoths: Exodus Modules x5 -> Snap Hook x2
  • Imposing Behemoths: Geiger Counter x3 -> Aphelion x1
  • Imposing Behemoths: Bombardier Cell x8 -> Raider Tokens x50
  • Imposing Behemoths: Matriarch Reactor x3 -> Snap Hook Blueprint x1

Avian Alarm

personal2026-04-14 to 2026-05-26unverified0/5 phases

Speranzans have noticed that some birds are sensitive to atmospheric changes, and have taken to designing multi-tiered alarm systems to warn of impending danger. Though their precision has been debated, the calming effect of their companionship is beyond reproach. Spring 2026 seasonal project tied to ship-model trinkets (Riven Tides era). Phase 1 was an interact task (deploy a bird trap next to the Buoys) rewarding a skill-point token.

Phase 1: Initial Flock Intake

Deploy a bird trap next to the Buoys

ARC damage tiers 1

Phase 2: Preliminary Signal Birds

Preliminary Signal Birds

Tick Pod x7Canister x20Moss x12"Twilight Compass" Ship Model x5

Phase 3: Secondary Validation Birds

Secondary Validation Birds

Comet Igniter x3Fertilizer x10Rusted Tools x8"Velocity" Ship Model x5

Phase 4: Heightened Alert Birds

Heightened Alert Birds

Vaporizer RegulatorWater Filter x3Agave x8"Sirena Dorata" Ship Model x5

Phase 5: Critical Warning Birds

Critical Warning Birds

Turbine Compressor x2Red Coral Jewelry x3Roots x4"Leviathan's Crown" Ship Model

Flickering Flames

personalunverified0/5 phases

A festival of resilient warmth, centered around the hardy candleberry bush. Speranzans have been known to host local celebrations, and being competitive, they seek to outdo each other at every turn. Some have managed to turn the homely candleberry bush into a banquet worthy of even the most discerning gourmands. Cold Snap (Dec 2025) winter festival event: gather Candleberries and festive items across five phases.

Phase 1: Candlelight

The namesake use for the candleberry, Speranzans boil the fruit into a thick wax that burns cleanly and fragrantly.

Empty Wine BottlePlastic Parts x25Durable Cloth x5Candleberries x20

Phase 2: Decorations

Many Speranzans have become surprisingly adept at the art of bringing beauty and greenery into the home.

Candle Holder x3Light Bulb x3Industrial BatteryCandleberries x50

Phase 3: Presents

Crafty Speranzans have turned the candleberries into a wealth of gifts. These include perfumes and soaps, as well as gifts unrelated to the recipient's odors.

Snap Blast Grenade x5Duct Tape x10Film ReelCandleberries x60

Phase 4: Beverages

Candleberries can be crushed into refreshing juices, while the leaves and roots make for a tea that can drive out the toughest of colds.

Coffee Pot x2Fireball Burner x10Water Filter x2Candleberries x60

Phase 5: Meals

Though candleberry leaves are bitter, simmering them in stew and soups adds a touch of earthiness that nostalgic Speranzans have grown to love.

Mushroom x7Frying Pan x2Music Album x2Candleberries x70

Weather Monitor System

personal2026-01-23 to 2026-03-31unverified0/5 phases

Collect the required parts to build a private weather station, and help monitor the turbulent weather above. Jan-Mar 2026 personal project: build a private weather station (five phases: pressure, sunlight, precipitation, humidity, temperature).

Phase 1: Atmospheric pressure

Lets you measure if that heavy weight on your shoulders is actually just the air.

Plastic Parts x25Metal Parts x15ARC Alloy x5Oil x3

Phase 2: Sunlight

Sunlight might be sparse in Speranza, but ultraviolet rays can still be measured by the right equipment.

Snitch ScannerWires x3Sensors x3Comet Igniter

Phase 3: Precipitation

Very few parts of Speranza are completely waterproof. Now you can say it’s for science.

ARC Powercell x5Canister x5Steel Spring x5Fine Wristwatch

Phase 4: Humidity

Great for keeping your skin looking luminous, and your walls somewhat moldy.

Duct Tape x10Rusted Bolts x3Water PumpWasp Driver x3

Phase 5: Temperature

Significantly more accurate than counting shivers per minute.

Camera Lens x3Damaged Heat SinkFirefly BurnerVoltage Converter x3

High-Gain Antenna

personal2026-02-13 to 2026-04-27unverified0/3 phases

When placed in open areas, these parabolic dishes can pick up on distant signals within a narrow beamwidth, which may help triangulate the origins of the troubling ARC signals that were recently reported. Feb-Apr 2026 project (Flashpoint era): build a parabolic dish to triangulate troubling ARC signals; heavy on ARC-alloy materials.

Phase 1: Sturdy Base

An extra-sturdy base that can withstand anything from bitter winds to sudden cloudbursts.

ARC Alloy x50ARC Flex Rubber x10ARC Performance Steel x10Advanced ARC Powercell x15

Phase 2: Data Logger

A closed-circuit interface to monitor and analyze distributed data points over time.

ARC Coolant x15ARC Thermo Lining x15Vaporizer Regulator x4Assessor Matrix x6

Phase 3: Parabolic Dish

A custom-built parabolic dish designed to capture distant signals in even the most stormy of conditions.

Surveyor Vault x10ARC Synthetic Resin x20Vaporizer Regulator x15Assessor Matrix x18

Converging Paths

personal2026-05-11 to 2026-07-28unverified0/6 phases

With ARC operations spreading across the Rust Belt, the nomads have agreed to share their knowledge in exchange for support. Raiders are needed to gather supplies, recover relics, and help secure safe passage for nomads traveling through dangerous routes. May-Jul 2026 nomad project: damage ARC in the Swamp, collect relics/trinkets, build emergency caches, and use mines/traps.

Phase 1: Secure Safe Passage for the Nomads

Deal Damage to ARC enemies in the Swamp

Phase 2: Collect Supplies

Collect supplies to share with the nomads

Train Model x3Vintage Steering Wheel x2Air Freshener x2ARC Thermo Lining x6

Phase 3: Procure Relics

Find relics to share with the nomads

Sextant x4Equatorial Sundial x3Metal Brackets x5ARC Performance Steel x7

Phase 4: Create Emergency Caches

Build emergency caches to help both the nomads and Raiders stay alive on the surface

Tellurion x3Elephant ObeliskLight Bulb x6ARC Coolant x9

Phase 5: Finish the Cabinet of Curiosities

Put the finishing touches on the cabinet of curiosities, a new emblem of blossoming ties between the nomads and Speranza.

Colorful Shoes (Red) x6Colorful Shoes (Green) x3Colorful Shoes (Silver) x2ARC Synthetic Resin x10

Phase 6: Use Nomad Tactics to Fight ARC

Deal damage to ARC using mines or traps (Blaze Grenade Trap, Pulse Mine, Jolt Mine, Explosive Mine, Surge Coil)

Phantom Targets

personal2026-08-04 to 2026-09-07unverified0/3 phases

Unrecognizable noise has started flooding Shani's radars, and she can't pinpoint the origin of these phantom targets. Raider assistance is needed to improve antennas on the surface, and track ARC behavior for any changes. Aug 2026 Part 1 (Shani): upgrade Cargo Elevator antennas, damage ARC with Wasp Drivers/Pop Triggers/Leaper Pulse Units, destroy ARC with fire, energy and launcher ammo.

Phase 1: Upgrade Cargo Elevator Antennas

Upgrade antennas found on top of any Cargo Elevator

Phase 2: Test ARC Parts for Irregular Behavior

Deal damage to ARC enemies using Wasp Drivers, Pop Triggers and Leaper Pulse Units

Phase 3: Test Multiple ARC Destruction Methods

Destroy ARC enemies using fire damage, energy damage, and launcher ammo

Phantom Targets

personal2026-08-18 to 2026-09-07unverified0/3 phases

The phantom targets Shani was tracking have a source: some Wasps are exhibiting patterns we've never seen before. They seem frantic. Aug 18 - Sep 7 2026 Part 2 (Live Update 1.42.0): collect Glitched Wasp parts (new item drops from frantic Wasps); rewards include the Anomalia Outfit; finale is damaging flying ARC with Fireworks.

Phase 1: Bring In Glitched Wasp Parts for Testing

Collect glitched Wasp parts

Glitched ARC Power Converter x10Glitched ARC Transmitter x10Glitched ARC Phased Array x10Advanced ARC Powercell x10

Phase 2: Perform Final Tests on Glitched Wasp Parts

Collect glitched Wasp parts

Glitched ARC Light Ring x10Glitched ARC Circuitry x10ARC Thermo Lining x10ARC Circuitry x10

Phase 3: Conduct One Final Explosive Test

Deal damage to any flying ARC using Fireworks

Ascending The Mountain

personal2026-09-08 to 2026-10-07unverified0/4 phases

Raider Project introduced with Live Update 1.45.0 (headline of the update). Four phases of item submissions themed around high-altitude / rocket research. Item names derived from item ids (repo has no English labels for this project yet). Rewards not captured in the data source.

Phase 1: Research High-Altitude Mechanics

Mechanical Components x10Pop Trigger x6Explosive Compound x10Headphones x2

Phase 2: Begin Ignition Tests

Wires x20Voltage Converter x8Sentinel Firing Core x2Rocket Thruster

Phase 3: Implement Landing Capabilities

Ruined Parachute x2Crash Mat x10Shredder Gyro x5Breathtaking Snow Globe x3

Phase 4: Final Tweaks

Sensors x30Broken Guidance System x3Advanced Electrical Components x15Vaporizer Regulator x3