Screenshots
Watch trailer on Steam ↗Prologue: Fish idle 2
MulticastGames · Published by MulticastGames
Mixed — 65% positive (377 reviews) · 3 achievements
Last updated 28 Sept 2026
Dive into the most fun idle fishing arcade game! Manage your Fish Kingdoms with automated fishing, upgrade your boat and gear, invest in passive income, and outsmart the market. Become the ultimate fish tycoon!
Free to PlayDJCTQ 14
Free
Adventure, Indie, Free To Play, Casual · 2024 · More free games
Manage and expand your Fish Kingdoms with automated fishing in Prologue: Fish Idle 2. Upgrade boats, gear, and investments to outsmart the market and become the ultimate fish tycoon in this free-to-play indie adventure.
About this game
WISHLIST THE FULL GAME
About the Game
Prologue: Fish idle 2 is a free introduction version to Fish Idle 2: Underwater Mystery!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!
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!
System Requirements
Will my PC run this? →Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS: windows 10
- Processor: Requires a 64-bit processor and operating system
- Memory: 2 GB RAM
- Graphics: Support for OpenGL 3
- Storage: 1 GB available space
- VR Support: no
Recommended
Recommended:
- Requires a 64-bit processor and operating system
- OS: windows 10
- Processor: Requires a 64-bit processor and operating system
- Memory: 4 GB RAM
- Graphics: Support for OpenGL 3
- Storage: 1 MB available space
- VR Support: no
Supported Languages
English, German, Spanish - Spain, Russian, Japanese
Latest news
Patch NotesOfficial
Update
Greetings, Fish Idle players! We're thrilled to bring you an exciting new update filled with fresh features, visual enhancements, and fixes to make your underwater adventures even better. Here’s what’s new: Update Highlights: Steam Deck Support: We’ve enabled full support for the Steam Deck, ensuring a seamless and optimized experience on this portable device. Vsync Added: Vsync is now available in the game settings, allowing you to synchronize the frame rate with your monitor's refresh rate for smoother visuals and reduced screen tearing. Visual Fixes: We’ve implemented several visual improvements, including refined textures, lighting adjustments, and animation fixes. Fish and boats are now correctly positioned, enhancing the overall visual quality. Adapted Interface Scale: The user interface has been scaled and adapted for improved readability and accessibility across various screen sizes and resolutions. Touchpad Joystick Removed: In response to community feedback, we’ve removed the touchpad joystick from the screen to streamline controls. Camera Adjustments: The main camera now features a more appropriate height and smoother transitions, providing a more comfortable and visually appealing gameplay experience. Right Stick Gamepad Sensitivity: We’ve adjusted the sensitivity of the right stick to make it more comfortable to use. You can also make additional adjustments in the gamepad settings via the Steam menu, which is particularly useful for non-standard gamepads. Thank you for your continued support and feedback. We hope you enjoy these updates and enhancements. Happy fishing! Multicast Games Keep swimming, keep winning!Read full article on Community Announcements (gdev)Patch NotesOfficial
Major update
We’re excited to share our latest update based on your feedback. Here’s what’s new in this patch: Improvements: Removed the progress blocker from the game. Based on your feedback, we have expanded the prologue so you can continue playing without interruption. Bug Fixes: Fixed several issues highlighted in your reviews and discussions, such as: Keyboard control issues FPS lock problems Fish that couldn't be caught And many other small bugs Thank You: We’re thrilled by the huge response to our project and delighted that you enjoyed playing the prologue. We appreciate your patience as we worked through some technical issues at launch. Feedback: If you encounter any more issues or have further feedback, feel free to reach out in the discussions, and we’ll respond as quickly as possible. {STEAM_CLAN_IMAGE}/45038818/01ab31a0e6b4388cb3b97fd92aaab5a235184f10.pngRead full article on Community Announcements (MulticastGames)Patch NotesOfficial
Patch Notes
Hello, players! We’re excited to share our latest update based on your feedback. Here’s what’s new in this patch: Bug Fixes: Fixed several issues highlighted in your reviews and discussions, such as: Keyboard control issues FPS lock problems Fish that couldn't be caught And many other small bugs Improvements: Removed the progress blocker from the game. Based on your feedback, we have expanded the prologue so you can continue playing without interruption. Thank You: We’re thrilled by the huge response to our project and delighted that you enjoyed playing the prologue. We appreciate your patience as we worked through some technical issues at launch. Feedback: If you encounter any more issues or have further feedback, feel free to reach out in the discussions, and we’ll respond as quickly as possible.Read full article on Community Announcements (gdev)Patch NotesOfficial
Major fixes
Hello, We are currently experiencing technical issues. Your saves or the game launch might be unavailable. If the issue persists after the latest update, you may need to reinstall the game. This also will reduce the size of the installed game on your disk. We apologize for the inconvenience. The Development Team {STEAM_CLAN_IMAGE}/45038818/046cd5409e7536cbcb43f2200fca6cc6e8ca540d.pngRead full article on Community Announcements (MulticastGames)
