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Just Fish: Idle Aquarium

Game overview

Just Fish: Idle Aquarium

Relax in a calm idle incremental aquarium. Buy and feed fish that grow in real time. Sell fish to buy more fry and discover rarer species. Build your oasis: unlock and place decorations, and enjoy fish interacting with them. Your world keeps earning even while you're away

Idler Creature Collector Economy Underwater Relaxing
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About this game Read the full description
"Buy fish. Feed fish. Watch fish grow.
 Sell fish - if you want more.
 Relax. Repeat. And feel relief.
 While you leave, they live."


“Just Fish” is a relaxing idle aquarium for quiet moments. 
Get fish from themed collection packs and watch them grow in real time. 


Feed to help them grow faster. 
Sell adult fish to buy more fry and discover rarer species - or keep them for steady income. 


Build your oasis: unlock and place decorations, and enjoy fish interacting with them. 


Use the game as a second-monitor screensaver, or pin a mini view in a corner for a small piece of calm while you work. 

Your world keeps earning even while you’re away.

Player activity

Concurrent players over the last 48 hours.

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MGN2026 Indie Game Carnival! Chinese localisation included We’re back! Development update & new plans 🐟 Weekly update! Demo version 0.1.12 info
System requirements Windows

Windows

Minimum

Minimum:
  • OS: Windows 10, 11
  • Memory: 2 GB RAM
  • Storage: 500 MB available space

Recommended

Recommended:
  • OS: Windows 10, 11
Game details Languages, features & support
Publisher
RoboLaserCosmoTurtle
Brazilian rating
l
Steam Germany rating
0
Features
Single-player, Camera Comfort, Mouse Only Option, Playable without Timed Input, Save Anytime, Family Sharing
Languages
English, French, Italian, German, Spanish - Spain, Japanese, Portuguese - Brazil, Russian, Simplified Chinese, Turkish
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Frequently Asked Questions

Is Just Fish: Idle Aquarium free to play?
Yes, Just Fish: Idle Aquarium is free to play on Steam.
What genre is Just Fish: Idle Aquarium?
Just Fish: Idle Aquarium is a Casual, Indie, Simulation game.
Who developed Just Fish: Idle Aquarium?
Just Fish: Idle Aquarium was developed by RoboLaserCosmoTurtle and published by RoboLaserCosmoTurtle.
What platforms does Just Fish: Idle Aquarium support?
Available on Steam for Windows.

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