ARC Raiders Events Guide: Every Map Condition, Schedule & Best Trackers

What Are ARC Raiders Events?

ARC Raiders events are dynamic map conditions that alter what’s available during a raid — changing enemy spawns, boss encounters, extraction difficulty, and loot quality. Knowing which event is active before you queue is one of the most practical advantages you can have, since the best blueprints and crafting materials are tied directly to specific conditions. Events run on server-synced timers across all six maps: Dam Battlegrounds, Spaceport, Buried City, Blue Gate, Riven Tides, and Stella Montis. Each map runs its own independent rotation, so there’s always something worth farming somewhere on the board.

The system is split into two tiers — major map conditions, which reshape the entire raid’s risk-reward structure, and minor conditions, which create focused opportunities for specific loot or boss encounters. Getting comfortable with both tiers, and knowing which events are locked to which maps, is what separates efficient runs from random ones.

Major vs. Minor Map Conditions: What’s the Difference?

Major conditions change the fundamental stakes of a raid on that map. They affect everything from visibility and movement to which boss encounters and loot containers become available. Minor conditions layer on top of the base raid, adding specific threats or reward nodes without necessarily flipping the entire map’s risk profile.

Here’s a breakdown of all confirmed events across both tiers:

A few events are worth prioritizing whenever they appear. Electromagnetic Storm is the most broadly efficient major condition — the 2× score multiplier makes any run more productive, and it’s the confirmed farm for Sentinel Firing Cores. Night Raid is the go-to for hunting blueprints generally, while Close Scrutiny is the specific window for Assessor blueprints. Among minor conditions, Matriarch and Harvester are both classified as extreme-threat boss events — these aren’t casual encounters, but the legendary blueprint drops make them high-priority targets for groups that can handle the pressure.

Prospecting Probes deserves a mention for crafters: ARC tech crash sites drop in waves and are guarded, but they’re a consistent supply line for Motion Cores and Circuitry, which are otherwise difficult to farm efficiently.

Event schedules shift whenever Embark pushes updates. Treat this table as a reference for understanding what each event does, not as a live schedule — always cross-check with a live tracker before queuing.

Map-Exclusive Events: Bird City, Beachcombing, Launch Tower Loot & Locked Gate

Several events only appear on a single map. If you’re farming a specific condition, queuing into the wrong map is a dead end. Here’s where each map-locked event lives:

Bird City — Buried City only

Bird City is a minor condition that appears exclusively on Buried City. It won’t show up on any other map’s rotation. If Bird City is your target, Buried City is the only queue that matters.

Beachcombing — Riven Tides only

Beachcombing is exclusive to Riven Tides, the map added in April 2026. Older community guides may not list Riven Tides at all — the current map count is six, and Riven Tides is a full member of the rotation. If you’re consulting an external source that only lists five maps, treat it as outdated.

Launch Tower Loot — Acerra Spaceport only

This minor condition is tied entirely to Acerra Spaceport. When it’s active, the launch tower area becomes a concentrated high-value loot opportunity — worth building a run around if the timer lines up with your session.

Locked Gate — Blue Gate only

Locked Gate is a major condition exclusive to the Blue Gate map. When active, it opens a gated zone that wouldn’t otherwise be accessible — one of the clearer examples of a major condition that literally changes map access rather than just difficulty or multipliers.

All six maps — Dam Battlegrounds, Spaceport, Buried City, Blue Gate, Riven Tides, and Stella Montis — cycle through their own independent rotations. A map-exclusive event on Buried City has no connection to what’s running on Stella Montis at the same time.

How the ARC Raiders Event Rotation Schedule Works

Each map runs a completely independent event rotation on a server-synced timer. At any given moment, all six maps could be running six different conditions simultaneously — the system is designed so that something worth farming is almost always active somewhere.

The more important wrinkle for scheduling is that Embark operates separate server schedules per region: Europe, North America, South America, Asia, and Oceania. The event rotation cycle is the same across regions, but the real-world clock time when each condition goes live differs depending on where your servers are. An EU player and an NA player might both be farming Electromagnetic Storm on Spaceport, but one is doing it at 14:00 local time while the other is doing it at 09:00.

Never rely on a screenshot of someone else’s event timer posted in a Discord or Reddit thread. If they’re on a different server region, their schedule doesn’t reflect yours. Always filter a live tracker to your own region to get an accurate countdown.

High-value containers and boss spawns rotate between maps on this same system, so checking the current event status before you queue tells you where the best loot opportunity is sitting right now.

Best ARC Raiders Event Trackers and Live Timer Tools

Several community-built tools auto-sync with Embark’s event schedule and display per-region countdowns for all six maps. None of these are official Embark products — they’re third-party resources built by the community, and their accuracy depends on how quickly each tool resyncs after Embark pushes a schedule update. That said, they’re the most reliable way to check current ARC Raiders events before queuing.

• timesaver.gg — per-region event timers for all maps with live countdowns
• raiderbuddy.com — event tracker with region filtering and schedule display
• arcraidermap.com — community tracker covering map events and schedule
• arcraiders.help — event reference and timer resource
• topside.events — live event countdown tool for ARC Raiders
• metaforge.app — event timers with per-region support
• op.gg — expanded to cover ARC Raiders event tracking

The practical workflow: open any of these trackers, set your server region, and check which maps are running high-priority conditions in the next rotation window. If Harvester or Matriarch is coming up on a map you can handle, that’s your queue. If Electromagnetic Storm just started on Spaceport, that’s where the score multiplier is live.

When Embark pushes a patch or schedule adjustment, there’s a short window where a tracker’s displayed times may be slightly behind until it resyncs. If a condition doesn’t match what you see in-map, the tracker may simply not have caught up yet.

Common Questions About ARC Raiders Events

When is Bird City active in ARC Raiders?

Bird City is a minor condition exclusive to the Buried City map. There’s no fixed universal time — the window depends on Buried City’s event rotation for your server region. Load up a live tracker like timesaver.gg or raiderbuddy.com, filter to your region, and check the Buried City countdown. That’s the only reliable way to know when Bird City is next up.

What does the ARC Raiders Harvester event timer mean for farming?

Harvester is an extreme-threat boss event and one of the confirmed sources for legendary blueprint drops. Knowing when the Harvester timer is active on a given map lets you prepare before queuing — coordinate with teammates, load out for a high-threat encounter, and avoid dropping in mid-window without the right setup. Harvester is a known high-priority farm target when the timer lines up, though specific drop rates aren’t confirmed beyond its legendary blueprint potential.

How do I check which ARC Raiders events are active right now?

Open any of the community trackers listed above — timesaver.gg, raiderbuddy.com, and metaforge.app are among the most commonly used. Select your server region (EU, NA, SA, Asia, or Oceania), and the tool will show which condition is currently live on each of the six maps along with a countdown to the next rotation.