What to know
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Rotary Encoder drops only on Stella Montis, not on other maps.
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It spawns as random container loot (drawers, cabinets, tool tables, sealed crates), not from enemies.
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Best odds come from looting areas packed with searchable containers, then extracting quickly once you find one.
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If you want to keep it safe, secure it immediately (for example, in your Safe Pocket if available) before you risk more fights.
In Arc Raiders, you can get the Rotary Encoder on the Stella Montis map by looting Exodus-tier containers, especially in container-dense indoor zones like Medical Research and Assembly areas. Rotary Encoder is rare and random, so the quickest path is maximizing how many containers you open per run.
| Topic | Quick info |
|---|---|
| Map requirement | Stella Montis only |
| How it spawns | Random Exodus-tier container loot |
| What to loot | Drawers, cabinets, tool tables, sealed crates |
| Best search zones | Assembly Workshops; Medical Research; Business Center; Lobby security office |
| Sell price | 3,000 |
| Weight / stack | 1.5 weight; stack size 3 |
Locations
Stella Monti is the only location where you want to be for Rotary Encoder. If you want consistent attempts, prioritize indoor zones with lots of small containers close together: Medical Research rooms, Assembly Workshops, the Business Center, and the Lobby security office.
These spots work well because you can clear many drawers and cabinets quickly, which is what the drop relies on.
How to farm Rotary Encoder fast
Step 1
Deploy to Stella Montis only, since other maps cannot roll the Rotary Encoder.
Step 2
Path straight to a container-dense zone like Medical Research or Assembly Workshops instead of roaming.
But prioritize “Medical Research”.
Step 3
Loot every small container you can reach quickly, especially drawers, cabinets, and tool tables (don’t skip small rooms).
Step 4
The moment it drops, secure it immediately (use your Safe Pocket if you have one), then avoid unnecessary fights.
Step 5
Extract early and reset if your chosen zone is already picked clean or too contested, since speed attempts beat full clears for random container drops.
Run Stella Montis, rush Medical Research or Assembly, loot every drawer and cabinet you see, and extract as soon as the Rotary Encoder appears. That loop gives you the most rolls per minute, which is what matters for a rare, random container item.
