How to Fish looks wide open the moment you crash your boat, but the main story is actually a tight chain of NPC requests. Each island hands you a task, that task leads to a boss, and beating the boss unlocks the coordinates for the next stop. Fishing, selling creatures, and buying weapons all feed into that loop, yet none of it moves the story unless you finish the current NPC’s request.
Quick answer: Progress in order — clear the Lighthouse and beat the Spider Crab to get the boat, then Island 2 (Leeches → Giant Piranha), Island 3 (Tourist/Carrot → Pufferfish), Island 4 (Tuna → Terrorizing Bird), the military/volcano Whale experiment → Mutated Bowhead Whale, then the final route to the mainland. Always finish the NPC hand-in, not just the kill, before expecting the next island to open.
The progression loop that unlocks every island
Every island follows the same rhythm. You talk to the named progression NPC, find whatever that NPC wants, prepare the bait or trigger, complete the boss or task, keep the quest item, and return it. Only then does the NPC give you new coordinates and update your Radar.
The most common mistake is treating a boss kill as the end of a step. Killing the creature and handing in its trophy are two separate things. If you defeat a boss and no new route appears, check the hand-in first before you assume you need a stronger weapon or a better boat.
Note: This is a sandbox, so there is no single fixed path. You can rush the final boss quickly for a speed achievement, but that skips most islands. The route below focuses on clearing the story in order.
Starting island: the Lighthouse and the Spider Crab
The Lighthouse is where everyone begins. Speak to the lighthouse keeper for the basics, then pick up a clam and eat it to handle hunger. Throw clams at the keeper using the cue button to feed him, and he pays you cash in return.
By this point you will also have completed the crustacean collection available at the Lighthouse. The boat key is tied to this quest, so there is no shop item or shortcut that replaces finishing the keeper’s request.
Boss fight rule: watch the white escape bar
Every boss has a white bar beneath its health pool. That bar is a timer. If it runs out, the boss escapes and you have to set up the whole encounter again from scratch, including the bait. Keep an eye on it during long fights.
The Spider Crab teaches the basic pattern. Bait it into a charge attack, then move sideways so the charge misses. It stuns itself after a miss, opening a window for up to four hits, though two or three is a safe, comfortable count. Reposition and repeat. Avoid backing off too far, since the crab starts jumping and wastes your timer.
Island-by-island route after the Lighthouse
Once you have the boat and Radar, follow the coordinates each NPC gives you. The table below shows the progression gate, the boss, and the trophy you must hand in to unlock the next location.
| Stage | Requirement | Boss | Hand-in to advance |
|---|---|---|---|
| Island 2 | Complete the 3/3 Leech request | Giant Piranha | Giant Piranha Skeleton → Island 3 coordinates |
| Island 3 | Give the Tourist an endangered creature to get the Carrot | Pufferfish | Pufferfish Tail → Island 4 coordinates |
| Island 4 | Get the Professional Boss Lure and catch Tuna | Terrorizing Bird | Bird’s head → next coordinates |
| Military / volcano | Follow the scientist’s Whale experiment, then throw the Whale in the volcano | Mutated Bowhead Whale | Finish the military objective → final route |
| Final | Follow the route back toward the mainland | Final boss | Completes the story (“We are so back”) |
A few of these steps are easy to misread. On Island 2, if you are still on the 0/3 Leech counter, you are not at the boss yet, so gather Leeches before expecting the Giant Piranha to appear. On Island 3, the Tourist’s Carrot is a prerequisite for the Pufferfish, so stop fishing for the endangered catch once the Carrot is in your inventory.
The military and volcano area works differently. Do not throw random creatures into the lava. Follow the scientist first, bring her the smaller creatures she needs, get the fitting Whale bait, then defeat the Whale and carry that Whale to the volcano. That volcano step advances the experiment and leads into the Mutated Bowhead Whale sequence. This is the one point where the boss itself must go to the volcano rather than being handed in as a trophy.
Where to spend money: weapon and boat upgrade order
The rod mainly launches creatures out of the water. Guns do the real killing and earn the real money, so do not sink your early cash into expensive gear you do not need yet. A clean upgrade order keeps you moving.
- Buy a firearm you are comfortable with first.
- Purchase the first boat engine upgrade next, which also makes island travel faster.
- Fully upgrade a single weapon’s attachment slots instead of spreading parts across several guns.
- Save for the best boat engine only after your main weapon is fully kitted out.
- Leave casino spending and rare-creature collection for the endgame.
Money comes faster when you stop selling creatures after plain kills. Launch a creature into the air with the rod, swap to a gun, and stack conditions like an airborne kill, a headshot, or a hip-fire shot. A higher Killscore multiplier raises the final sale price, so even an ordinary fish can pay well.
Tip: Before buying anything new, name the problem it solves. If a boss has not spawned, check the quest trigger instead of shopping. If the boss is spawned but you barely hurt it, improve the weapon. If you are landing shots but the fight drags, improve damage. This stops you from farming cash when the real block is a missing quest step.
After the story: the 28 achievements
Finishing the main route is not the same as finishing everything. How to Fish has 28 achievements, and several require cleanup goals that pull in different directions from a normal first run. Keep your first clear focused on the story, then switch to challenge hunting.
The two collection achievements are the biggest time sinks. Collector needs a kill of every regular creature, while Fishipedia also demands the rare Drip variants, which spawn in the same spots at a much lower rate. Kill any Drip variants you meet naturally during the story, but save dedicated Drip farming for the end.
A handful of challenges are best done in isolation. Easy asks you to kill a boss in under 10 seconds, so pick an early, weak boss, stand at its spawn with your strongest weapon reloaded, and open fire immediately. Handyman requires beating the final boss with bare hands, so learn the fight on a normal clear first and attempt the melee run separately. Do not try to combine Easy and Handyman on the same final boss.
Play the story in this order and the game reads as one long chain of favors rather than a puzzle. Solve the current NPC gate, hand in the trophy, follow the Radar, and only reach for the shop when you can point to the exact problem a new weapon or engine is meant to fix.
