Harpoon a Fish Progression
Progression roadmaps for every stage: early game coin farming, unlocking deep sea, the halibut harpoon, Ruby Keys, and endgame aquariums.
What is Progression?
Progression is the path from a small harpoon and shallow waters to the endgame: deep sea access, rare fish collections, and a fully stocked aquarium. These guides map out every milestone.
Why follow a progression plan?
Clear Milestones
Know exactly what to unlock next, from gear tiers to new zones
Unlock Deep Sea Faster
Reach the deep sea and its legendary fish without dead-end grinding
Build the Endgame Aquarium
Turn rare catches into a showcase tank with Ruby Keys and evolution
Featured & Essential
Harpoon a Fish Evolve Fish: Growth & Aquarium Walkthrough
Learn how to evolve fish in Harpoon a Fish: grow your body with food, dive deeper, manage your aquarium, and build rare sea monster collections.
Harpoon a Fish Dev Rod: Facts, Myths & Harpoon Upgrades
What is the Harpoon a Fish dev rod? Learn the facts about developer harpoons, how the rod system works, and the best upgrade path for players.
All Progression Guides
Harpoon a Fish Halibut Guide: Harpoon Setup & Catch Tips
Learn how to harpoon halibut in Harpoon a Fish: growth prep, depth access, aiming, reeling control, and aquarium value for flatfish targets.
Harpoon a Fish: How to Get Halibut Harpoon Guide
Learn how to catch halibut and other flatfish in Harpoon a Fish with harpoon tips, depth prep, and growth strategies for deep-water targets.
Harpoon a Fish Rare Fish Guide: Locations, Tactics & Tier Rankings
Learn how to catch rare fish in Harpoon a Fish: depth requirements, growth prep, tier rankings, fish index tracking, and harpoon tips.
Harpoon a Fish Ruby Keys: How to Get & Use Them
Learn how to earn Ruby Keys in Harpoon a Fish, what they unlock, and the best ways to spend them in this deep-sea Roblox fishing simulator.
Secret Halibut Harpoon: Deep-Water Hunting Guide
Learn how to harpoon deep-water halibut-style flatfish in Harpoon a Fish: growth prep, depth route, aiming tips, and what the community calls the secret halibut.
Harpoon a Fish unlock deep sea: Growth & Depth Walkthrough
Learn how to unlock deep sea areas in Harpoon a Fish: food growth, weight thresholds, depth routes, and sea monster prep tips for Roblox players.