Game guide

Harpoon a Fish Guide: First steps on the island

Harpoon a Fish

FirstTry, Playing 6.1K, Rating 97.2%

Creator FirstTry

Playing 6.1K

Rating 97.2%

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About

Overview

Harpoon a Fish is a Roblox fishing-action game where you fire a harpoon, time your reels, and haul in sea monsters from an index of over 1,800 unique species. The deeper you sink, the rarer — and more dangerous — the creatures get. This guide covers how to get started, how to push further, and what the game's badges reveal about its long-term goals.

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What is on this page

Contents

01 First steps on the island Step 02 Getting fat to go deeper Tips 03 Live and upcoming events Events 04 Stealing fish and the trophy rule Warn 05 Crafting bait and growing pets Check 06 Redeem codes Summary 07 Working codes Codes 08 Badge targets worth chasing Tips 09 Glossary Words 10 Common questions FAQ

Player notes and tips

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First steps on the island

Step

In short Learning to aim, fire, and reel is the foundation everything else builds on.

When you first load in, you land on the island and unlock the Stranded badge automatically. Before worrying about rare catches, spend your first few minutes getting comfortable with the two-part harpoon loop: firing and reeling. Up to six players share a room, so the action starts immediately.

Aim at your target line up your crosshair on the fish before you fire, not after
Fire the harpoon release it at the right moment to hit the fish
Time your reels pull the fish toward you in rhythm
Put the catch in your aquarium fish kept there become pets you can grow
Record the species every new catch fills out a slot in your index

Ask on the board

Getting fat to go deeper

Tips

In short Sinking deeper is how you reach rarer monsters, so getting fat to sink is a core part of progression.

The game asks you to get fat in order to sink lower in the water. Deeper zones hold the sea monsters that unlock the game's hardest badges, but they also carry more danger.

Tips worth knowing

Get fat and sink deeper to discover and catch new sea monsters
Deeper water means rarer species — the Kraken, Megalodon, Eclipsed Leviathan, and others all live down there
Danger increases the deeper you go

03 Live and upcoming events Events

Events running now or coming soon. They have fixed dates, so check them first.

Live now Nov 7 – Nov 14

NEW WORLD??

BRAND NEW WORLD???

Upcoming Nov 14 – Nov 21

WHAT IS THAT?!?!??

?????

Upcoming Nov 14 – Nov 21

3 NEW WEATHER EVENTS!

3 NEW UNIQUE WEATHER EVENTS!

See the whole schedule

Stealing fish and the trophy rule

Warn

In short Any player can harpoon a fish another player has already hooked, and only one person per room wins the trophy.

Stealing is a built-in mechanic, not an exploit. If another player has already hooked a fish, you can fire your harpoon at it and claim it for yourself. The same applies to you — a fish on your line is not safe until it is in your hands.

Worth watching out for

Never assume a fish is yours until the catch is confirmed stay alert during the reel

Only one player per room can earn the trophy catch, so competition is constant

Rooms hold up to six players

Crafting bait and growing pets

Check

In short Crafting bait and evolving your aquarium fish open up separate progression tracks.

Two systems run alongside the main fishing loop. Bait can be crafted and used to attract fish, earning you the Bait Crafter badge when you do it for the first time. Fish you keep in your aquarium can be evolved into bigger, rarer forms.

Craft at least one bait to unlock the Bait Crafter badge
Place caught fish in your aquarium rather than discarding them they can be evolved over time
Evolve your fish to grow the biggest and rarest sea monster you can find

Redeem codes

Summary

In short Codes give you XP and Ruby Keys, so enter them as soon as you have them.

The game distributes codes that reward XP and Ruby Keys when redeemed. Codes can expire and each one can only be used once, so enter any code you find right away. This site tracks working codes separately — check the codes section of this page for the current list.

Reward　XP and Ruby Keys
Limit　one use per code
Risk　codes expire, so do not wait
Count　two working codes tracked by this site as of November 8, 2026

07 Working codes Codes

MONSTER +3k XP and +3 Ruby Keys

+3k XP and +3 Ruby Keys

Every code, and the votes on it, are on the codes page

Badge targets worth chasing

Tips

In short The badge list maps out the game's hardest goals, from single rare catches to full-index completion.

Seventeen badges track your progress across every part of the game. The rarest demand either catching specific legendary monsters or completing the entire species index.

Tips worth knowing

WORLD RECORD requires catching the single biggest fish in the game
TRUE HARPOONER is described as a title only a handful of players have ever claimed
Monster Hunter pushes you down the rabbit hole of rare species
WHAT??? is awarded for a catch so surprising the developers put it in all-caps
New Pet rewards keeping a caught fish in your aquarium instead of leaving it
Meet the Owner is earned by meeting the developer

Glossary

Harpoon: The projectile weapon you aim and fire at fish — the primary tool for every catch in the game.
Reel: The timed action of pulling a harpooned fish toward you after it has been hit.
Index: Your in-game catalogue of every species you have caught, with over 1,800 slots to fill.
Ruby Keys: A reward currency that can be obtained from redeem codes.
Bait: A craftable item, and crafting one for the first time earns the Bait Crafter badge.
Aquarium: The place where you store caught fish to keep and grow them as pets.

Common questions

FAQ

Can another player really take a fish I already hooked?

Yes — stealing is an intentional part of the game. Any player can harpoon a fish that is already on someone else's line and claim it. Only one player per room earns the trophy for a catch, so the competition is real.

How do I reach the rarest sea monsters?

Get fat and sink deeper. The Kraken, Megalodon, Eclipsed Leviathan, and other legendary species live at greater depths. Danger increases the deeper you go.

How many species are in the game?

There are over 1,800 unique fish and sea monsters to find. Filling your entire index with every species is one of the game's longest-term goals.

Updated Nov 8, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.

Harpoon a Fish FirstTry, Playing 6.1K, Rating 97.2%

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