ARC Raiders Event Timer — How It Works
Event Types & Map Conditions
ARC Raiders events run on server-synced timers across all five maps: Dam, Spaceport, Buried City, Blue Gate, and Stella Montis. Major map conditions include Electromagnetic Storm (lightning-heavy weather that grants 2x score multipliers), Night Raid (reduced visibility with altered spawns), Hurricane (high winds affecting movement and extractions), and Harvester events. Smaller events include Hidden Bunker encounters, Locked Gate key spawns, Close Scrutiny zones, and Uncovered Caches with bonus loot.
ARC Enemy Spawns Worth Tracking
The timer tracks spawns for every ARC enemy type: from low-tier Ticks, Pops, and Fireballs through mid-tier Leapers, Surveyors, Turrets, Sentinels, and Snitches, up to high-value targets like Wasps, Rocketeers, Bastions, Bombardiers, Hornets, Comets, Fireflies, and Shredders. The rarest boss encounters — Queen and Matriarch — drop crafting materials like Queen Reactors and rare blueprints that take many normal raids to accumulate.
Container Spawns
Timed container spawns include Weapon Cases, Ammo Crates, Raider Caches, Hurricane Caches, Breachable Containers, Security Breach rooms, Med Crates, Utility Crates, and ARC-specific loot from Arc Husks, Arc Probes, and Arc Couriers. High-value containers rotate between maps, so checking the timer before queuing tells you where the best loot is right now.
Farming Tips
Stack event windows: when two timed spawns overlap on the same map, you can hit both in a single raid. Boss encounters are the highest-value targets — plan your drop around the timer so you land right as the spawn goes live. The timer updates in real time on a second monitor or phone, no game login required.