Fishbook

Verified 2026-10-04 · game version 1.1.3 · how we source things

Sponge

Sponge sells for €4 in How to Fish, and it is caught with the Crab Carcass.

€4

Sell price

Read from the in-game encyclopaedia screen.

7

Fish on this lure

Everything the Crab Carcass reaches.

€

Currency

Euros — added in the 1.1.0 update, paid for the Crab Carcass fish.

4

Fish to earn 10×

25,000 catches sells for about $100,000.

How to catch it

Lure needed
Crab Carcass
Where to get the lure
random islets (three sand piles in the ocean)
Sell price
€4
Source
Read off the in-game encyclopaedia (Steam Community guide screenshots)

Equip the Crab Carcass before you cast — the bait decides the pool, not where you stand. Selling is done by throwing the catch into a shopkeeper's mouth (hold the interact key), so a full inventory is the usual reason a run stalls.

An early-game catch. Its job is to fund the next lure rather than to be a payday, so do not spend a long time farming it once you can afford the next tier.

Other fish the Crab Carcass reaches

FishValue
Mahi-mahi €6
Tench €5
Char €5
Amberjack €5
Starfish €4
Sponge this page €4
Alaska Pollock €4

Keep reading

Sources