Copper Core
Monster core. Needed to upgrade copper gear.
How to get it
Dropped by
| Name | Level | Where | Qty | Chance |
|---|---|---|---|---|
| Skeleton | – | Mine floors 10–29 | 1 | 7% |
| Rock Crab | – | Mine floors 10–19 | 1 | 9% |
| King Slime | – | Mine floor 10 boss | 1–2 | 100% |
Quest reward
What it's for
Tool upgrade
Bought by
| Character | Island | Sells to shops for |
|---|---|---|
| Marina | Market Harbor | 40 🦪 |
| Marlin | Sunken Temple | 49 🦪 |
Gift preferences
No character has a strong opinion about this gift.