Event timers

The conditions, decoded

• Close Scrutiny

  major

  Close Scrutiny is a map condition that spawns Surveyors, protected by Vaporizers, that call in ARC Assessors after they finish locating valuable materials.

  source: wiki ↗

• Cold Snap

  major

  Cold Snap is a map condition for Dam Battlegrounds, Buried City, Spaceport and The Blue Gate.

  source: wiki ↗

• Electromagnetic Storm

  major

  Electromagnetic Storm is a map condition that covers the affected map in an intense storm, which strikes the surface with lightning.

  source: wiki ↗

• Hidden Bunker

  major

  Hidden Bunker is a map condition exclusive to Spaceport that allows access to a bunker complex southwest of the Departure Building.

  source: wiki ↗

• Hurricane

  major

  Hurricane is a map condition that causes reduced viability and hearing, increased loot value, and shield damage when outside.

  source: wiki ↗

• Locked Gate

  major

  Locked Gate is a map condition exclusive to The Blue Gate. The entrance to the underground tunnels is locked, and Raiders must collect security codes to unlock it and loot the contents inside.

  source: wiki ↗

• Night Raid

  major

  Night Raid is a map condition that increases the likelihood of Raiders finding higher value loot, particularly behind locked doors where keys appear more frequently.

  source: wiki ↗

• Beachcombing

  minor

  Beachcombing is a map condition exclusive to Riven Tides.

  source: wiki ↗

• Bird City

  minor

  Bird City is a map condition exclusive to Buried City. Flocks of birds have built nests within the rooftop chimneys using gathered materials.

  source: wiki ↗

• Harvester

  minor

  Harvester is a map condition that spawns a Harvester structure protected by a Queen at a fixed location on each map.

  source: wiki ↗

• Husk Graveyard

  minor

  Husk Graveyard is a map condition that significantly increases the number of ARC husks scattered on the map.

  source: wiki ↗

• Launch Tower Loot

  minor

  Launch Tower Loot is a map condition exclusive to Spaceport. Increased amount of loot at the top of Launch Tower on Spaceport.

  source: wiki ↗

• Lush Blooms

  minor

  Lush Blooms is a map condition that increases the amount of nature loot and Wicker Baskets that can be found on the map.

  source: wiki ↗

• Matriarch

  minor

  The Matriarch is a colossal ARC machine that makes the Queen look friendly by comparison. It can only be found when its map condition is active.

  source: wiki ↗

• Prospecting Probes

  minor

  Prospecting Probes is a map condition that significantly increases the number of Probes scattered on the map. Probes may also be more protected by flying ARC machines, like Wasps.

  source: wiki ↗

• Uncovered Caches

  minor

  Uncovered Caches is a map condition that significantly increases the number of Raider Caches scattered on the map. Additionally, the value of loot inside Raider Caches is increased.

  source: wiki ↗

Quick answers

How do ARC Raiders map events work?

Map conditions run in one-hour blocks starting on the hour, on a server-wide schedule — every raider on a map gets the same condition at the same time. Some hours are intentionally quiet.

Where does this schedule come from?

Straight from Embark's official map-conditions tracker on arcraiders.com, refreshed about every five minutes. Condition descriptions are cited from the community wiki.

What's the difference between major and minor conditions?

Major conditions change the whole map — weather like Hurricane or Electromagnetic Storm, or threats like Night Raid and Close Scrutiny. Minor conditions are targeted opportunities such as Harvester, Matriarch, or extra loot spawns.