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78% positive of 173 · Mostly Positive · Live from Steam
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"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!
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What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 78% on 2026-11-01 → 78% today (173 reviews)
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Works, but may need extra effort. Results from Valve's own testing.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
- resolution and full screen error - npc unlock error
- fix errors about fishes
- New Building! : Relax Rock - flip function for buildings - kingdom achievement become more easier (just 4) - fix errors (conversion rate reset, voltech tail, SC-Cropped)
- Add 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
- add 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 (BGM, Building Reset) - Upgrade translation -> fish name in zh-CN zh-TW - Add keyboard movement - More detail description - Fish cost balance more natural
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 game changed a lot during development, s…