WALKTHROUGH · CHECKED FOR PATCH 1.0.10
Lighthouse → Forest → Desert → Rocks → Volcano → Ending
Follow only the required fish, bait, boss fights, item turn-ins, and island unlocks needed to finish the game.
Already partway through the game?
Jump straight to your current island.
REQUIRED PROGRESSION ONLY
Only want the required route? Follow these steps. Optional fish, achievements, money farming, and secrets are left out.
ISLAND 1
Empty Beer Can
Spider Crab
Spidercrab Shell
Boat and Forest route
Jump to Lighthouse ↓
ISLAND 2
3 Leeches
Modified Leech
Giant Piranha
Desert
Jump to Forest ↓
ISLAND 3
Carrot
Carrot for Pufferfish
Pufferfish
Rocks
Jump to Desert ↓
ISLAND 4
Professional Boss Lure
Tuna
Dead Tuna for Albatross
KEEP THE TUNA
Volcano after Albatross
Jump to Rocks ↓
ISLAND 5
Fish Bucket
Bowhead Whale
Dead Whale in Main Lava
DEAD WHALE → LAVA
Mutated Bowhead Whale
Jump to Volcano ↓
FINISH
Whale Fin and claim quest
Use End Game interactable
Jump to Ending ↓
ISLAND 1
Complete the Lighthouse NPC chain, defeat Spider Crab, and claim the unlock interaction.
REQUIRED · STEP 1
1Required: Beer ×1
Why: This starts the required boss-bait chain.
After: You receive the Empty Beer Can.
How to get Beer →REQUIRED · STEP 2
2Required: Empty Beer Can
Why: The can is the confirmed direct catch bait for Spider Crab.
After: The Spider Crab encounter becomes available.
Empty Beer Can details →REQUIRED · STEP 3
3Why: Kill the boss and keep its required progression drop.
After: Collect the Spidercrab Shell.
Spider Crab boss guide →REQUIRED · STEP 4
4Required: Spidercrab Shell
Why: Turning in the item is not the final action; claim the completed quest interaction too.
After: Boat access unlocks.
Fix boat unlock →COMMON PROBLEMS
Turn in the Spidercrab Shell and claim the completed quest interaction.
Open exact fix →Use the Empty Beer Can; ordinary lure pools are not the required trigger.
Open exact fix →PROGRESSION CHECKER
Still needed: Beer delivered to Lighthouse NPC and 3 more.
NEXT · FOREST
You'll need: Collect 3 Leeches and prepare the Modified Leech.
ISLAND 2
Reach the Desert · Giant Piranha · Unlocks Desert
Activate the Swamp Daughter quest, pick up all three ground-spawned Leeches, and use the reward for Giant Piranha.
REQUIRED · STEP 1
1Required: Active 0/3 quest objective
Why: Leeches are small ground pickups around the settlement, central shack, and lakeside quest area—not fishing catches.
After: The Swamp Daughter objective reaches 3/3.
See all Leech locations →REQUIRED · STEP 2
2Required: 3 Leeches turned in
Why: The player-facing Modified Leech is the Leech Bait reward used for the island boss.
After: You have the required Giant Piranha bait.
How to get Modified Leech →REQUIRED · STEP 3
3Required: Modified Leech
Why: Use the dedicated boss bait, then keep the progression drop.
After: Collect the Giant Piranha Skeleton.
Giant Piranha boss guide →REQUIRED · STEP 4
4Required: Giant Piranha Skeleton
Why: The unlock is tied to the completed quest interaction.
After: Desert unlocks.
COMMON PROBLEMS
Confirm the quest is active, then search the grassy settlement, shack, and lakeside ground.
Open exact fix →The 0/3 objective must be active and all three pickups must be turned in.
Open exact fix →PROGRESSION CHECKER
Still needed: 3 Leeches collected and 3 more.
NEXT · DESERT
You'll need: Trade one accepted creature for the Carrot, then defeat Pufferfish.
ISLAND 3
Unlock Rocks · Pufferfish · Unlocks Rocks
Give the Pufferfish NPC one accepted creature, use the Carrot reward for the boss, and turn in its fin.
REQUIRED · STEP 1
1Required: One of: Superdwarf Fish, Seahorse, Oarfish, Needlefish, Dripper, Bowlfish, or BingBong
Why: Only one accepted creature is required; you do not need every Desert catch.
After: You receive the Carrot.
See accepted creatures →REQUIRED · STEP 2
2Required: Carrot
Why: The Carrot is the confirmed direct boss bait for Pufferfish.
After: The Pufferfish encounter becomes available.
How to get the Carrot →REQUIRED · STEP 3
3Why: Kill the boss and keep the progression drop.
After: Collect the Pufferfish Fin.
Pufferfish boss guide →REQUIRED · STEP 4
4Required: Pufferfish Fin
Why: Return to the Pufferfish NPC and finish the island-unlock quest.
After: Rocks unlocks.
COMMON PROBLEMS
Give the Pufferfish NPC any one creature from its accepted list.
Open exact fix →Open the focused boss strategy and prepare suitable damage before the encounter.
Open exact fix →Turn in Pufferfish Fin and claim the completed quest interaction.
Open exact fix →PROGRESSION CHECKER
Still needed: One accepted creature turned in and 3 more.
NEXT · ROCKS
You'll need: Catch Tuna, preserve its body, and use it to trigger Albatross.
ISLAND 4
Unlock Volcano · Tuna → Albatross · Unlocks Volcano
Rocks is a dependency chain: Tuna is not the end of the step; its dead body is used to trigger Albatross.
Don't progress blindly after catching Tuna. Defeat it and preserve the dead body for the Albatross trigger.
REQUIRED DEPENDENCY
REQUIRED · STEP 1
1Required: Professional Boss Lure
Why: This lure has the confirmed dedicated Tuna pool.
After: Tuna can be caught and defeated.
Professional Boss Lure details →REQUIRED · STEP 2
2Why: The dead Tuna is the strong, current progression trigger for Albatross.
After: You have the food trigger for AlbatrossSpawner.
KEEP THE TUNA
Tuna guide →REQUIRED · STEP 3
3Required: Dead Tuna body
Why: Place the body on Island 4 ground to trigger the Albatross sequence.
After: Albatross spawns.
Fix Albatross spawn →REQUIRED · STEP 4
4Why: Albatross Head is the required Island 5 progression drop.
After: You can complete the Seagull NPC quest.
Albatross boss guide →REQUIRED · STEP 5
5Required: Albatross Head
Why: Give it to the Seagull NPC and claim the completed quest.
After: Volcano unlocks.
COMMON PROBLEMS
Use the Professional Boss Lure; Tuna also has a very low-weight alternate pool, but the dedicated lure is the reliable route.
Open exact fix →Catch another Tuna and preserve the dead body before attempting Albatross.
Open exact fix →Use a defeated Tuna body on Rocks; keep it on the island ground for the trigger.
Open exact fix →Turn in Albatross Head to the Seagull NPC and claim the completed quest interaction.
Open exact fix →PROGRESSION CHECKER
Still needed: Professional Boss Lure obtained and 3 more.
NEXT · VOLCANO
You'll need: Prepare Fish Bucket, normal Bowhead Whale, and the lava mutation sequence.
ISLAND 5
Complete the final boss chain · Bowhead Whale → Mutated Bowhead Whale · Unlocks Ending trigger
Prepare the Fish Bucket, kill the normal whale, satisfy the Main Lava conditions, and collect Whale Fin from the mutated boss.
The normal Bowhead Whale does not drop Whale Fin. Its dead body starts the mutation sequence.
REQUIRED DEPENDENCY
PROGRESSION CHECKER
Still needed: Fish Bucket obtained and 4 more.
REQUIRED · STEP 1
1Required: Any Creature ×5
Why: Quest 9949 awards the dedicated big-boss bait.
After: You receive the Fish Bucket.
Fish Bucket details →REQUIRED · STEP 2
2Required: Fish Bucket
Why: The normal boss must be dead before Main Lava will accept the item.
After: Keep the dead Bowhead Whale body.
KEEP THE BODY FOR THE LAVA STEP
Bowhead Whale guide →REQUIRED · STEP 3
3Required: Dead normal whale · not held · no active boss
Why: Main Lava rejects a live boss, a held item, or the sequence while another boss is active.
After: The eruption begins and the mutated whale spawns after the short sequence.
DEAD WHALE → LAVA
Fix the mutation trigger →REQUIRED · STEP 4
4Why: This mutated boss—not the normal whale—is the confirmed source of Whale Fin.
After: Collect Whale Fin.
Mutated Whale boss guide →REQUIRED · STEP 5
5Required: Whale Fin ×1
Why: Complete and claim the Whale NPC final-boss quest so the final progression flag is set.
After: The End Game interactable can become available when no boss is active.
COMMON PROBLEMS
Use the dead normal whale, do not hold it, make sure no boss is active, and wait for the eruption sequence.
Open exact fix →Whale Fin drops from Mutated Bowhead Whale, not the normal Bowhead Whale.
Open exact fix →Turn in Whale Fin, claim the final quest, clear active bosses, then use the End Game interactable.
Open exact fix →NEXT · ENDING
You'll need: Claim the final quest, clear active bosses, and use the End Game interactable.
FINAL STEP
Finish the game and return to the post-game world state · No active boss · Unlocks Credits and post-endgame world state
The final-boss quest flag does not finish the game automatically. The End Game interactable must be used while no boss is active.
PROGRESSION CHECKER
Still needed: Required island route complete and 4 more.
REQUIRED · STEP 1
1Required: Whale Fin ×1
Why: Quest 9950 sets the final-boss progression flag when completed and claimed.
After: The game recognizes the final boss as complete.
REQUIRED · STEP 2
2Why: The End Game interactable checks that BossManager has no active boss.
After: The final interaction is no longer blocked by a boss encounter.
REQUIRED · STEP 3
3Why: The quest flag alone does not automatically finish the game.
After: Credits, finish-game checks, and post-endgame state run.
Return to Mainland guide →COMMON PROBLEMS
Turn in Whale Fin and claim Quest 9950; the boss death alone does not set the finish state.
Open exact fix →Clear every active boss, then manually use the End Game interactable.
Open exact fix →PROGRESSION TROUBLESHOOTER
Tell the checker what happened and where you are. It will return the most likely missing condition, not a generic FAQ list.
MOST LIKELY MISSING
The Spidercrab Shell turn-in and the completed quest interaction are both required.
CHECK THESE IN ORDER
NEXT FOR LIGHTHOUSE
Use the Empty Beer Can and collect the required shell.
Open Spider Crab →
Check the turn-in and completed quest interaction.
Open Boat Unlock →
Follow the early Lighthouse item chain.
Open Empty Beer Can →
Browse catches associated with the starting stage.
Open Lighthouse Fish →