Dual Motors are sold for $860 in the shack by the grill on Island 4 in How to Fish.
How to Fish is Dazed Games’ physics-based co-op fishing shooter on Steam, and once you reach Island 4 the boat’s final engine upgrade comes into reach. Dual Motors are that upgrade, and buying them is what pops the I am speed achievement for owning the best engine on the boat.
The Dual Motors price and shop on Island 4
| Item | Where to buy |
|---|---|
| Dual Motors | Shack by the grill, Island 4 — $860 |
Key There is only one seller and one price. Head to the small shack next to the grill on Island 4, and the Dual Motors sit there for $860. This is the top boat engine in the game, so no later island offers a better one to chase.
Reaching Island 4 and affording the $860
Progress to Island 4
Complete each island’s quests and beat its bosses to unlock the next one until Island 4 opens.
Build up your money
Fish, kill creatures, and sell your catch — cooking fish on a grill for the 1.5x value before selling speeds this up.
Find the shack by the grill
On Island 4, look for the small shack sitting right next to the grill.
Buy the Dual Motors
Spend the $860 on the engine to fit the best motor to your boat.
Before you sell anything, cook it on the grill for the 1.5x value bump — it’s the fastest way to close the gap to $860.
What to weigh before dropping the cash
Dual Motors are not your first engine upgrade. An earlier, cheaper boat engine is sold back on Island 2 for $230 at the shack next to the old man, and buying it is what unlocks the separate Getting an upgrade achievement.
That Island 2 engine handles the mid-game just fine, so there’s no need to rush the $860 the moment Island 4 opens. Dual Motors are specifically the engine tied to I am speed — grab them once your income is steady rather than starving your lure and weapon budget to afford them early.
Related How to Fish guides
Frequently Asked Questions
Does buying Dual Motors unlock the I am speed achievement?
Yes. I am speed is awarded for buying the best engine for the boat, and Dual Motors are that engine. Purchasing them from the Island 4 shack pops the achievement.
Can you get the earlier boat upgrade achievement with a cheaper engine?
Yes. The Getting an upgrade achievement only asks you to upgrade the boat’s engine at all, and the $230 engine at the Island 2 shack next to the old man satisfies it — no need to wait for the pricier Dual Motors.
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