01

Monsters and drops

Percentages are the drop rates published on the community wiki. Every monster in the mines can also drop pet skins and hats at low rates; those are listed separately on the monsters page rather than repeated in every row.

Upper Mines · floors 1–19
MonsterNotable drops
SaplingsSap (70%), monster fang (30%)
Rock ClodsStone (70%), monster shell (30%)
Copper Ore ClodsCopper ore (70%), monster shell (30%), ruby (5%)
Red MushroomsRed toadstool (70%), monster powder (30%)
Yellow EnchanternsGlass (70%), monster core (30%)
02

How to run this biome

Bring food, an empty-ish inventory, and stop at an elevator floor rather than pushing to exhaustion. Ruby drops from copper clods are the first gem most players see.

S

Primary sources

Checked against these public pages. Official sources define confirmed features and status; community sources are labelled as such and used for game data that the developer does not publish directly.