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OHAYO GIANTHOOK!: Monster Fishing Adventure

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OHAYO GIANTHOOK!: Monster Fishing Adventure screenshot 1
OHAYO GIANTHOOK! "Fishing time..." trailerWatch trailer on Steam ↗

OHAYO GIANTHOOK!: Monster Fishing Adventure

Humbara Game Studio · Published by Humbara Game Studio, HOGO Games

Last updated 9 Oct 2026

OHAYO Gianthook! is an epic fishing adventure where you hunt legendary monster fish in ancient seas. Upgrade your gear, dive into dangerous waters, and uncover the mysteries of the sunken realm known as the Deep World. Catch over 150 unique monster fish and become the ultimate king of the seas!

Free to PlayComing SoonDJCTQ 12Full Controller Support

Free

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Adventure, Early Access, Casual · More free games

Embark on a thrilling fishing journey where you'll upgrade your gear and brave dangerous waters to become the king of the legendary Deep World. Dive into this monster-filled adventure with Humbara Game Studio's OHAYO GIANTHOOK!.

About this game

Welcome to the Boiling Depths!

In a post-apocalyptic world where the oceans boil with lava, this is no ordinary fishing trip.

"Ohayo Gianthook!" puts you in the role of a cheerful yet fearless hunter on a quest to capture legendary sea monsters.

Your goal? Collect the mysterious Crimson Shards and become the true ruler of the seas.

Use brave divers to learn the type and location of monster fish in the submerged world!

Every hunt begins with knowledge. Thanks to the divers you send into the deep, you’ll discover where each monster lives, what it feeds on, and when it appears.

Knowledge is the most important weapon for survival and hunting in this world.

Upgrade your rod and weapons with the loot from your hunts to catch rarer and more dangerous monsters!

You’ll begin with basic gear. But after each hunt, you can use your rewards to upgrade your rods, harpoons, and support weapons.

This way, you’ll be ready to target deeper, stronger, and rarer monsters.

Catch 150 different monster fish and become the ultimate monster angler! But be careful! Each monster requires a specific rod setup.

Every monster in this world is like a puzzle. You can’t catch them without the right bait, the right rod, and the right timing.

With 150 different monster fish, every hunt requires new strategy and tactics.

In this world, everyone uses a support weapon alongside their fishing rod. Step into boss fights with the legendary Humbagun passed down from your father, and experience a different kind of fishing!

Monsters don’t go down without a fight. They spit lava, shake the sea, and roar like heralds of the apocalypse.

That’s why you’ll face them armed with the legendary HUMBAGUN inherited from your father.

Here, fishing becomes an art of war.

Discover the mysterious story hidden at the bottom of the deep world by engaging in dialogue with many different characters. Are you the only one who can defeat the enigmatic enemy threatening the end of the world?

Strange peoples living in turtle-backed cities, wise elders who know underwater myths, and forgotten legends of the past...

They all have a story to tell. Through these conversations, you’ll not only uncover new quests but also trace the shadow of a dark force threatening the world.

In this wild world where monsters, lava, and legends collide, every creature, every weapon, and every piece of gear is infused with the savage spirit of chaos.

Grab your rod and dive into this crazy fishing adventure!

System Requirements

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Minimum

Minimum:
  • OS *: Windows 7 SP1 veya üzeri
  • Processor: Intel Core i3-2100 / AMD FX-4100
  • Memory: 4 GB RAM
  • Graphics: NVIDIA GeForce GTX 650 / AMD Radeon HD 7750
  • Storage: 2000 MB available space

Recommended

Recommended:
  • OS: Windows 10 (64-bit)
  • Processor: Intel Core i5-8400 veya AMD Ryzen 5 2600
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GTX 1060 / AMD Radeon RX 580
  • Storage: 2000 MB available space

Supported Languages

English*, French, Italian, German, Spanish - Spain, Simplified Chinese, Portuguese - Brazil, Japanese, Korean, Polish, Portuguese - Portugal, Russian, Turkish*, Ukrainian, Hindi
*languages with full audio support

Latest news

  • AnnouncementsOfficial

    Devlog: Our Ship's Stubborn Travel Companion on OHAYO 🐦⚓

    In the OHAYO universe, every ship has special birds responsible for navigation. Under normal circumstances, these birds retire after completing their duties. But things are a little different on our ship...Meet: Our Bird Who Refuses to Retire. This small but rebellious companion is both feisty and iconically cute, much like a magpie. While drawing it, we always asked ourselves: “What kind of sound would this bird make?” We imagined it having a sweet appearance and a voice that sounds like it's constantly complaining.But this bird's stubbornness isn't limited to its voice. It has a problem: Just like the quest for revenge in the story of Moby Dick, it has a great enemy from the past. That's why it tries to steer the ship in that direction at every opportunity. Of course, our muscular and attentive hero quickly notices this and takes the reins.So what's happening under the sea? 🌊Our ship's diver is almost constantly underwater. He carries a special lamp that reveals valuable minerals. A small piece of the mineral's essence is placed inside this lamp, thus beginning the journey to find the actual mineral.Our diver also has a special iron map in his hand. We were inspired by the maps divers use underwater in real life. When he sees a fish, he fires a signal flare to notify his fishing partner beside him.Dialogues, character interactions, and humor 🎭The scenes you see in this visual are actually composed of drawings depicting small dialogues and conflicts between the characters. In the world of OHAYO, we don't just fish; we also experience comical, surprising, and sometimes stubborn relationships with our fellow travelers.In short: Our journey aboard the ship continues not only against sea monsters, but also against the stubborn birds on board, the ambitious divers, and our own internal conflicts.We'd love to hear your predictions in the comments. Maybe we'll add real voice acting to the game in the future. 😉
    Read full article on Community Announcements (cet)
  • Patch NotesOfficial

    🌊 Devlog Update: Divers & Daily Fish Hints! 🐠

    🌊 Ahoy, anglers! ⚓We’ve got something fresh from the deep sea for you. At the start of the game, you might remember that divers would head underwater to collect information for us. Well… they’ve just leveled up! 🚤🤿🐟Divers Are Now a Mini-Game!Instead of simply bringing back generic reports, the divers now return with valuable clues about the fish that will appear that day. Each dive is a small mini-game. What they discover will help you predict and prepare for the day’s fishing opportunities. Think of them as your underwater scouts, making sure you’re always one step ahead. 👀🌊 Why We Added This We didn’t want the divers to just be background flavor — now they’re part of your daily routine in the game. It adds a layer of mystery and strategy: Which fish will show up today? Should you change your gear? Or hold out for that rare catch? 🎣 What’s Next This is just the beginning of making the world feel more alive. We’re planning to expand these interactions even further, so your time by the ocean feels full of surprises and discoveries. Thank you all for the amazing feedback — keep sharing your thoughts, they really help us polish the game! 💬Until next time… tight lines and good luck out there! 🐠🐙
    Read full article on Community Announcements (cet)
  • AnnouncementsOfficial

    🌹 Fishing with Flowers? Welcome to Another Week in OHAYO!

    Hey everyone! This week in OHAYO’s ever-evolving world of monster fishing, our R&D team dove deep into the idea of shooting fish with style. The question was: What if bullets weren’t just bullets? What if they were... flowers? And guess what? We made it work.🎯🌸 🪷Petal-Powered Firearms Instead of traditional bullets, we experimented with custom-made metallic flowers loaded into your weapon. Our first prototype? A rose. With each shot, a rose petal falls off. Visually striking, symbolic, and surprisingly effective. But that’s just the beginning. We’re working on a full menu of flower-based ammo, each with unique effects on different fish behaviors: Shock Lavender – Instantly paralyzes electric fish Moon Orchid – Scares away nearby predators Blue Lotus – Calms aggressive fish and slows their movements ...and many more are in development. 🌼🔫 These floral rounds aren’t just beautiful — they open up new strategies and playstyles for every type of angler. 🌿Who Grows These Bullets? And now the real mystery: Who cultivates these strange flowers? We’re introducing a new, secretive character into the OHAYO universe: The Gardener. We haven’t revealed their design yet, but we’re toying with ideas like: An elder figure whose face is hidden behind overgrown blossoms A half-machine, half-forest hybrid with a hidden past A quiet, childlike entity with a mysterious calm We want to hear what you imagine. Who is The Gardener? What’s their story? Let us know in the comments — your ideas might help shape what comes next.🌱
    Read full article on Community Announcements (cet)
  • AnnouncementsOfficial

    🎣 THE ADVENTURE BEGINS — WELCOME TO THE WORLD OF GIANTHOOK🌊

    Something ancient stirs beneath the surface.In a sea where memory and myth intertwine, a new journey begins — one of monstrous fish, forgotten tools, and the quiet pull of destiny. Gianthook isn’t just a fishing game. It’s a plunge into the unknown, armed with nothing but your instincts and a weapon passed down through generations: the Humbagun.Today, we unveil the first glimpse of that journey.This is your first look into Gianthook, revealed during the Steam Fishing Fest.There’s no demo yet, but the tide is shifting. Soon, you’ll cast your line into something far deeper than water.Until then…Let this trailer be your compass.Watch. Wishlist. Share.The world of Gianthook awaits — and it’s calling you.
    Read full article on Community Announcements (cet)
  • AnnouncementsOfficial

    OHAYO GIANTHOOK! ve My Story

    🎣 OHAYO GIANTHOOK! Hello to the Community! 🐟 About three years ago, while desperately trying to finish a horror game I was stuck in, I stumbled upon an old character design video for a dream project of mine — a game themed around monster fishing. At that moment… something sparked inside me. The character from the universe I had once imagined gave me hope again. Now, I’m beyond excited, because this project is no longer just a dream. I’ve secured funding and officially started developing the game full-time. With 15 years of experience I’ve been collecting, I was able to reshape this character. After countless late nights and lots of personal growth, I’m finally ready to share the first character design that I believe truly captures the soul of Gianthook. Your support and feedback are incredibly important to me. By simply sharing this game with your friends and communities, you’ll be giving me the greatest support possible. 🎯 Meet OHAYO GIANTHOOK! Armed with Humbagun — a weapon passed down from his father — and many other tools, he stuns massive fish before catching them. He's adventurous, he's fun, and this is just the beginning. I want to go on this journey with you. I can’t wait to hear your thoughts, ideas, and feel your energy. The adventure begins.
    Read full article on Community Announcements (cet)

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