Steam
Under the blue horizon
Also known as Under the blue horizon, steam:3122150, ubh
"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!
Last update
25 May 2026
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- October 2024
- We noticed a lot of feedback from people who played our game that they would like to see more idle and fish not die. We wanted to create a smaller version of that game using our existing assets, and the structure of the…Store
- August 2024
- Fix Errorsfix errors about fishes
- New feature (Relax Rock) and Small changesNew Building! : Relax Rock - flip function for buildings - kingdom achievement become more easier (just 4) - fix errors (conversion rate reset, voltech tail, SC-Cropped)
- Small new features 2Add more detail tutorial - Current fish percentage visualize - Fish Multiplier (*2, 5, 10, 25, 100) - Add glitch mode for placing buildings - Setting value will remain after re-birth - Minor bugs fixed
- Small new featuresadd visualize current fishes - refact clam count (each clam levels) - you can change coral percentage - change coral fishes a little bit. - visualize for full upgrade
- Fix Errors and Small new featuresFix errors (BGM, Building Reset) - Upgrade translation -> fish name in zh-CN zh-TW - Add keyboard movement - More detail description - Fish cost balance more natural
- Fix Backup System / Add Building Count, Net DiscountAdd building count - Make net buying more easier - Fix backup system error
- Fix Errors and Add Backup systemfix collider issues - fix coral errors - fix fish result visualize below zero - add backup system so, steam cloud file missing, then try to use local data automatically
- Fix Errors and Corals become more easy to buybuying corals be more easier block building and other information corrupt - fix building can overlap after placed - force windowed → fix black window in some pcs - fix bgm and sfx a little up after monitor switching - f…
- Fix font readability, other errors, and balanceFix font readability (Change to other font) Currency Overflow BGM Characters (DJ Octa, Corals...) need currency decresed
- Mac error and font blur visualization are fixed
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