Biome
Deep Earth
Recorded drops
4
Drop checklist
These are possible drops, not guaranteed rewards per defeat. No drop percentages are published here.
- Essence Drop
- Possible drop
- Essence Bat Hat
- Possible drop
- Monster Wing
- Possible drop
Plan a mission run
Compare the exact monster name with the active Stillwell objective before spending a mine run on it. Keep your local mission tracker separate from the in-game quest state. The v1.0.4 fixes corrected Stillwell monster tracking; v1.0.5 additionally addresses a rare Rock Stack combat crash.
Sources and version context
1.0.0 dataset; v1.0.5 reviewed. Dataset checks are separate from the current game version; a patch review does not claim that every granular value was retested in-game.
- Mistria Codex · monsters.json · pinned snapshot — game-data, source coverage 1.0.0, checked 2026-09-26.
- NPC Studio · v1.0.5 patch notes — official, source coverage 1.0.5, checked 2026-09-26.