Geiger Counters are the most sought-after Exodus material in Arc Raiders, but their rarity makes them a nightmare to farm. Beyond their use in crafting Exodus Modules and Batteries, they’re now a mandatory component for completing the final stage of the Trophy Display project—requiring three units to unlock the Imposing Behemoths reward. Without a clear map or spawn pattern, players are left scavenging through Stella Montis’ industrial ruins, hoping for a lucky find.
Unlike most loot, Geiger Counters don’t appear in predictable drops or vendor stocks. Instead, they’re hidden in specific containers across the map, with the highest concentration in Assembly and its surrounding Workshops—a sprawling complex of walkways, storage rooms, and machinery halls in the northern sector of Stella Montis. The key to efficiency lies in methodical searching: prioritize yellow and white tool stands, blue cabinets, and filing cabinets, which are scattered along the assembly line and in adjacent rooms. Breachable server cabinets, often found in dimly lit side chambers, are another hotspot—though they require a pickaxe or lockpick to access.
Where to Search for Geiger Counters
While Assembly is the primary hunting ground, Geiger Counters can occasionally be found in other areas, though yields are far lower. Medical Research, located just south of Assembly, is the next-best alternative. The facility is cluttered with tool stands and filing cabinets, making it a viable secondary location—especially since it’s easily accessible from the assembly line via the western hallway.
For players focused solely on the Trophy Display, the grind ends once three Geiger Counters are collected. However, those pursuing Exodus crafting should continue scavenging, as these materials are also required for high-tier recipes. The payoff for persistence is substantial: recycling a single Geiger Counter yields 1 Exodus Module and 2 Batteries, while selling it on the market fetches $3,500—a tidy sum in a game where resources are perpetually scarce.
The Trophy Display’s final reward, an Aphelion legendary rifle, is a tempting incentive. Unlike most endgame weapons, this firearm doesn’t require defeating a Matriarch—just delivering the materials. For players who’ve avoided high-risk raids, this offers a rare chance to acquire elite gear without the usual consequences.
Pro Tips for Efficient Farming
- Bring a flashlight—many containers are tucked into dark corners, and visibility is key to spotting them.
- Prioritize locked containers—server cabinets and some tool stands may require lockpicks or a pickaxe, but they often hold the highest-value loot.
- Check Medical Research first—if you’re struggling in Assembly, this adjacent area offers a quick detour with similar container density.
- Don’t ignore the ground—while most loot is in containers, occasional Geiger Counters may be scattered in workshops or along walkways.
With no respawn system in place, patience is the only currency. Players who treat Geiger Counter hunting as a long-term project—rather than a one-off Trophy Display task—will reap the benefits in both crafting and market profits. For those racing to complete the display, Assembly remains the best bet, but a methodical approach across all high-density zones maximizes chances of success.
