Cavern key
MembersUntradeable
Sources from the OSRS Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.
As an Ironman: dropped by Experiment (level 51).
Monster drops
| Dropped by | Level | Quantity | Rarity |
|---|---|---|---|
| Experiment | 51 | 1 | Always |
Best rates first, plus the lowest-level monsters that drop it.
Other sources
Minigames, reward chests, clues, skilling and other non-combat sources.