Official How to Fish Steam gameplay on Desert Island

Stage 3 of 5 · How to Fish Steam

How to Fish game: Desert Island guide

The Standard Lure stage combines an endangered-creature trade, a Carrot-triggered story boss and the optional Grillmaster route.

Last verified August 28, 2026

Immediate route answer

Unlock, objective, exit

Unlock: Return the Giant Piranha trophy and follow the yellow Radar marker.

Main objective: defeat Pufferfish. Complete Pufferfish's route result and hand it in to reveal Rocks Island.

Route stage3/5Five-island story chain
Local entries12Creature directory records
Boss encounters2Story and optional fights
Story bossPufferfishRequired route target

Use this page as a stage checklist. Finish the numbered route before spending on optional boss lures, then use the local tables for Fishipedia and side-route cleanup.

How to unlock Desert Island

Return the Giant Piranha trophy and follow the yellow Radar marker.

If the marker is missing, return to Forest Islandand verify its named boss result was handed to the correct quest giver.

Desert Island walkthrough

  1. Open the Standard Lure pool and catch an eligible endangered species such as Needlefish or Seahorse.
  2. Trade the eligible catch to the Tourist under the tree for a Carrot.
  3. Use the Carrot to summon Pufferfish, defeat it and preserve the fin.
  4. Return the fin to reveal Rocks Island; separately, deliver Blue Shark to the Grillmaster to unlock cooking.

Stage tips

  • Do not sell the quest fish before the Tourist accepts it.
  • A Standard Boss Lure costs $280, so stage weapons and healing before starting Blue Shark.
  • Use terrain and broad lateral movement rather than chasing Pufferfish through its charge cycle.

Desert Island creatures

This stage has 12 local directory entries in the Patch 1.0.10 snapshot. Quest bodies and boss results can be worth coins while still being required for progression.

CreatureTypeRod / baitBase value
AngelfishFishFishing Rod
Standard Lure
62 coins
Yellow BoxfishFishFishing Rod
Standard Lure
53 coins
CatfishFishFishing Rod
Standard Lure
46 coins
Sea UrchinSpecialFishing Rod
Standard Lure
52 coins
SeahorseFishFishing Rod
Standard Lure / Professional Lure
100 coins
ClownfishFishFishing Rod
Standard Lure
46 coins
BluegillFishFishing Rod
Standard Lure
62 coins
BowlfishFishFishing Rod
Standard Lure
Value unverified
NeedlefishFishFishing Rod
Standard Lure
60 coins
Blue SharkBossFishFishing Rod
Standard Boss Lure (dedicated encounter; also reported in the Standard Lure pool)
300 coins
PufferfishBossFishFishing Rod
Carrot
12,000 coins
Bing BongSpecialFishing Rod
Coconut
Value unverified

Desert Island bosses

Story route

Pufferfish

The Desert route boss turns an endangered-species trade into a charging, poison-aware arena fight.

Trigger
Carrot obtained from the Tourist trade
Result
Pufferfish fin; return it to reveal Rocks Island.
Open boss tactics
Optional

Blue Shark

This profitable Desert side boss is also the gateway to cooked healing and the 1.5× sale route.

Trigger
280-coin Standard Boss Lure (dedicated encounter route)
Result
Deliver the body to the Grillmaster to start the grill and unlock cooking.
Open boss tactics