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.
Expedition 1
expedition2025-10-30 to 2025-12-17unverified0/6 phasesExpeditions 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
Phase 2: Core Systems
Connecting wiring, ventilation, and essential power systems
Phase 3: Framework
Building walls and roof, installing core systems, and defining the interior layout
Phase 4: Outfitting
Adding storage, workbenches, utilities, and personal touches
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
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.
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 phasesExpeditions 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
Phase 2: Core Systems
Connecting wiring, ventilation, and essential power systems
Phase 3: Framework
Building walls and roof, installing core systems, and defining the interior layout
Phase 4: Outfitting
Adding storage, workbenches, utilities, and personal touches
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
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.
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 phasesExpeditions 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
Phase 2: Core Systems
Connecting wiring, ventilation, and essential power systems
Phase 3: Framework
Building walls and roof, installing core systems, and defining the interior layout
Phase 4: Outfitting
Adding storage, workbenches, utilities, and personal touches
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
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.
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 phasesExpeditions 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
Phase 2: Core Systems
Connecting wiring, ventilation, and essential power systems
Phase 3: Framework
Building walls and roof, installing core systems, and defining the interior layout
Phase 4: Outfitting
Adding storage, workbenches, utilities, and personal touches
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
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.
Departure window
- 2026-07-07 to 2026-07-21 (two weeks)
Expedition 5
expedition2026-07-07 to 2026-09-22unverified0/6 phasesExpeditions 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
Phase 2: Core Systems
Connecting wiring, ventilation, and essential power systems
Phase 3: Framework
Building walls and roof, installing core systems, and defining the interior layout
Phase 4: Outfitting
Adding storage, workbenches, utilities, and personal touches
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
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.
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 phasesUse 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.
Phase 2: Soaring Menaces
The airborne machines dominating the skies, raining peril down upon unsuspecting Raiders.
Phase 3: Ferocious Foes
A clear escalation of topside dangers, these machines have doled out severe punishments to overconfident Raiders.
Phase 4: Dominant Dangers
The vicious threats leaving behind a trail of downed Raiders; dominating their surroundings with tenacity and grit.
Phase 5: Imposing Behemoths
The colossal foes making the earth tremble, and the epitome of big-game hunting.
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 phasesSperanzans 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
Phase 2: Preliminary Signal Birds
Preliminary Signal Birds
Phase 3: Secondary Validation Birds
Secondary Validation Birds
Phase 4: Heightened Alert Birds
Heightened Alert Birds
Phase 5: Critical Warning Birds
Critical Warning Birds
Flickering Flames
personalunverified0/5 phasesA 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.
Phase 2: Decorations
Many Speranzans have become surprisingly adept at the art of bringing beauty and greenery into the home.
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.
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.
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.
Weather Monitor System
personal2026-01-23 to 2026-03-31unverified0/5 phasesCollect 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.
Phase 2: Sunlight
Sunlight might be sparse in Speranza, but ultraviolet rays can still be measured by the right equipment.
Phase 3: Precipitation
Very few parts of Speranza are completely waterproof. Now you can say it’s for science.
Phase 4: Humidity
Great for keeping your skin looking luminous, and your walls somewhat moldy.
Phase 5: Temperature
Significantly more accurate than counting shivers per minute.
High-Gain Antenna
personal2026-02-13 to 2026-04-27unverified0/3 phasesWhen 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.
Phase 2: Data Logger
A closed-circuit interface to monitor and analyze distributed data points over time.
Phase 3: Parabolic Dish
A custom-built parabolic dish designed to capture distant signals in even the most stormy of conditions.
Converging Paths
personal2026-05-11 to 2026-07-28unverified0/6 phasesWith 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
Phase 3: Procure Relics
Find relics to share with the nomads
Phase 4: Create Emergency Caches
Build emergency caches to help both the nomads and Raiders stay alive on the surface
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.
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 phasesUnrecognizable 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 phasesThe 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
Phase 2: Perform Final Tests on Glitched Wasp Parts
Collect glitched Wasp parts
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 phasesRaider 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
Phase 2: Begin Ignition Tests
Phase 3: Implement Landing Capabilities
Phase 4: Final Tweaks