Under the blue horizon
"Under the Blue Horizon" is an idle simulation game. Play while performing other tasks on your computer! Place your own aquarium anywhere on your screen, coexisting with your work, games, and more!
Offers
What are keyshops?About Under the blue horizon
1. Create fish! Fish grow by eating shrimp. Raise various fish and observe diverse species (there are really many different kinds of fish!)
2. Build your own space under the blue horizon! You can turn the byproducts dropped by fish into currency (Aqua!). Collect Aqua to expand the sea, build and place structures!
3. Crawfish and jellyfish are friends who help you! Hire these friends and plan more efficient placements and ways to acquire resources!
4. Special friends provide various functions such as optimization, music, and new buildings! Hire special friends and enjoy diverse features!
5. We provide convenience features! Try intuitive UI with features like zoom in/out, monitor switching, window repositioning, and always-on-top display!
Game details
Game details
Age ratings
Game modes
Languages
Features
Under the blue horizon price history
Lowest tracked price: £4.99 (Jul 7, 2026) · current best: £4.99.
Under the blue horizon player count & reviews
78% positive reviews all-time · 3 peak players in the last 30 days.
Under the blue horizon — frequently asked questions
Where can I buy Under the blue horizon at the cheapest price?
Right now the cheapest offer for Under the blue horizon is £4.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Under the blue horizon has ever been?
The lowest price KingsPrice has tracked for Under the blue horizon is £4.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Under the blue horizon?
Under the blue horizon peaked at 3 concurrent players on Steam in the last 30 days (highest on Jul 8, 2026). The player chart on this page updates daily.
How can I get Under the blue horizon at a discount?
Create a free price alert on this page and KingsPrice will email you when Under the blue horizon drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS: Windows 10
- Processor: Intel® Core™ i3 @ 3.2 GHZ
- Memory: 4 GB RAM
- DirectX: Version 9.0
- Storage: 300 MB available space
Recommended
- Memory: 8 GB RAM
- DirectX: Version 9.0
- Storage: 300 MB available space
- Additional Notes: Recommend More than FHD Monitor
