About the Game
Crush in your rainboots and hop into your boat! We are going fishing in Fish Idle 2: Underwater Mystery, a unique idle fishing arcade featuring smooth graphics and intuitive mechanics. We have no time to swing a fishing rod, so let’s streamline the process!
Let’s start with the basics. It’s all about automation: fish start biting as soon as you approach them, and resource indicators keep you informed while you focus on managing your Fish Kingdom effectively. The game offers advantageous upgrades to enhance your idle fishing abilities, helping you become a true fish tycoon. You’ll still need to steer your boat to chase fish schools and avoid obstacles, so don’t get too distracted by your economic prowess!
Once your hull is full, it’s time to get upgraded! Improvements in fishing speed let you catch more and rarer species, while increased storage capacity allows you to hold more catches in your boat. Boost your boat’s speed and defense for impact protection, and enhance your fishing rods to cast multiple lines at once. It’s all about maximizing your gains in the most efficient way, so you’ll have to use your head to figure out the best way to success!
Just like in real life, becoming a fish tycoon involves various ways to profit from your catches. The Idle Fish Farm allows you to invest and get passive income, while the Black Market lets you upgrade your Fish Kingdoms beyond OSHA standards. The Bots Shop enables you to hire hunter, fisher, and cargo ships to fish and deliver catch for you, boosting your income. If day trading is your thing, there is a Currency Exchange that has some special benefits. Tax fraud is not a crime, it’s an obligation if you want to make it big.
Get ready to dive into the Fish Kingdoms and become the ultimate fish tycoon in Fish Idle 2: Underwater Mystery!
SIMPLE AND EASY FISHING
Let’s start with the basics. It’s all about automation: fish start biting as soon as you approach them, and resource indicators keep you informed while you focus on managing your Fish Kingdom effectively. The game offers advantageous upgrades to enhance your idle fishing abilities, helping you become a true fish tycoon. You’ll still need to steer your boat to chase fish schools and avoid obstacles, so don’t get too distracted by your economic prowess!
UPGRADE YOUR FISH KINGDOM
Once your hull is full, it’s time to get upgraded! Improvements in fishing speed let you catch more and rarer species, while increased storage capacity allows you to hold more catches in your boat. Boost your boat’s speed and defense for impact protection, and enhance your fishing rods to cast multiple lines at once. It’s all about maximizing your gains in the most efficient way, so you’ll have to use your head to figure out the best way to success!
MAKE IT BIG
Just like in real life, becoming a fish tycoon involves various ways to profit from your catches. The Idle Fish Farm allows you to invest and get passive income, while the Black Market lets you upgrade your Fish Kingdoms beyond OSHA standards. The Bots Shop enables you to hire hunter, fisher, and cargo ships to fish and deliver catch for you, boosting your income. If day trading is your thing, there is a Currency Exchange that has some special benefits. Tax fraud is not a crime, it’s an obligation if you want to make it big.
NOW GO FISH
Get ready to dive into the Fish Kingdoms and become the ultimate fish tycoon in Fish Idle 2: Underwater Mystery!
Screenshots
6 images
Version Information
Steam Patch Notes
Official update history
On the site: Build 17691957
Up to date
Hello, fishermans! Glad to announce new patch with bug fixes and game improvements
Now you can switch the game to window mode in game settings! Be sure to stretch window after switching to state you like
Now chests timer should work well and all chest should be delivered in time. Also timer for chest delivering is increased to reduce chance of errors. If you still encounter some problems with chest, let us know
Added localization for chinese, turkish, italian and ukrainian
Added more information for items, stats and ways to obtaining them
Achievements now working properly, localization fixes and more
View on Steam
Window screen mode and sound settings
Now you can switch the game to window mode in game settings! Be sure to stretch window after switching to state you like
Fixed chests cooldown
Now chests timer should work well and all chest should be delivered in time. Also timer for chest delivering is increased to reduce chance of errors. If you still encounter some problems with chest, let us know
Localization
Added localization for chinese, turkish, italian and ukrainian
Game UI
Added more information for items, stats and ways to obtaining them
Other bug fixes
Achievements now working properly, localization fixes and more
Current Release
Build 17691957
Uploaded Jul 05, 2026
System Requirements
OS
windows 10
CPU
Core I3
RAM
N/A
GPU
no
How to Install
1
Download all files
2
Extract the .ZIP file to a folder (use WinRAR or 7-Zip)
3
Run game.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Size
95 MB
Build
17691957
Password: cracked-games.org
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View AllDownload Fish Idle 2: Underwater Mystery for PC with a direct link or via torrent. Get the full version of Fish Idle 2: Underwater Mystery for free. Fish Idle 2: Underwater Mystery is a Adventure released by Multicast.