Build beautiful aquariums, care for exotic marine life, complete creative customer jobs, and grow your own aquarium business into a world-class oceanarium in this relaxing sandbox simulation🪸🐟

Public builds
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Counted once we have watched for 90 days (since 21 Oct 2026)
Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.
Checked within minutes of each Steam change. Observed since 21 Oct 2026.
Source: Steam client network (PICS), App info, public branch. Full methodology
Latest public build
Build 25125344
Update posts
15 postsPosts announcing an update, tagged or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
Typical gap between builds
Not enough builds yet| Build | Went live | Patch notes |
|---|---|---|
| 25125344 | None posted |
From Steam’s client network, last checked . Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count
| Posted | Update |
|---|---|
| 3 Sept 2026 | Hotfix 3 Patch notes |
| 26 Aug 2026 | Hotfix 2 Patch notes |
| 19 Aug 2026 | Hotfix 1 Patch notes |
| 13 Aug 2026 | 🐟 Decorations & Improvements 📈 NEW UPDATE Update |
| 25 Jun 2026 | Another 2 locations you can revisit 🆕🐟 NEW UPDATE Update |
| 18 May 2026 |
| ⚡ Here Comes The Tablet! 📱 NEW UPDATE Update |
| 13 Apr 2026 | Hotfix Patch notes |
| 4 Apr 2026 | Aquarist – Aztec & Axolotl Update is now live! Update |
| 24 Mar 2026 | Hotfix 1 Patch notes |
| 19 Mar 2026 | 👨🏻💻 Advanced Designer Update 🖌️🐟 Update |
| 23 Feb 2026 | Hotfix 1 Patch notes |
| 17 Feb 2026 | 🎏 Let's celebrate Chinese New Year - Aquarist UPDATE! 🐉 Update |
| 17 Dec 2025 | ✨ Souvenir Zone UPDATE! 🎁 Update |
| 17 Nov 2025 | HOTFIX #2 Patch notes |
| 9 Nov 2025 | Aquarist Hotfix 1 Patch notes |
| 5 Nov 2025 | Aquarist UPDATE! 📈🐠 Update |
| 15 Sept 2025 | Stable Waters Update 📶 Optimization changes 📈 Update |
| 26 Jul 2025 | Radio Update 📻❗️ Update |
| 15 Jun 2025 | 🐠 UTILITY UPDATE! 🐟⏲️ Update |
| 7 May 2025 | Hotfix 3 Patch notes |
| 6 May 2025 | Hotfix 2 Patch notes |
| 2 May 2025 | Hotfix Patch notes |
| 1 May 2025 | May Aquarist Update! Celebrating our new DLC premiere all the way 🎆 Update |
| 13 Mar 2025 | Aquarist and DLC Update! Update |
| 29 Jan 2025 | Aquarist hotfix 2 Patch notes |
| 24 Jan 2025 | Aquarist Hotfix Patch notes |
| 23 Jan 2025 | Decorating Interior Update is live! Update |
| 19 Dec 2024 | 🎄🎁Christmas Update🎁🎄 Update |
| 27 Nov 2024 | Prize Machine Update! Update |
| 18 Nov 2024 | Aquarist DLC Hotfix 2 Patch notes |
| 14 Nov 2024 | Aquarist supermarket DLC hotfix Patch notes |
| 16 Sept 2024 | Viking's Wrath - Update! Update |
| 5 Aug 2024 | Aquarist Hotfix v.2 Patch notes |
| 5 Aug 2024 | Aquarist Hotfix 05.08 Patch notes |
| 1 Aug 2024 | Lights ON/OFF Update! 💡💡💡 Update |
| 19 Jun 2024 | DLC Japanese Garden 💮 Launch! + Jellyfish Update Update |
| 13 May 2024 | Aquarist Picture Update🖼️ Update |
| 12 Apr 2024 | Hotfix Patch notes |
| 5 Apr 2024 | Hotfix Patch notes |
| 29 Mar 2024 | 💫Star sailor💫 - update out of this world! Update |
| 15 Jan 2024 | Save the Ocean Update Update |
| 27 Dec 2023 | Hotfix Patch notes |
| 3 Nov 2023 | Aquarist i Frigato on board! Update |
| 26 Oct 2023 | Halloween - Scream Fest Update 💀🎃😱 Update |
| 16 Oct 2023 | Hotfix Patch notes |
| 5 Oct 2023 | Island Adventure Major Update🏝️ Update |
| 29 Jun 2023 | Achievement Update! Update |
| 19 May 2023 | HotFix Patch notes |
| 18 May 2023 | Underwater Museum Update! 🐟 Update |
| 24 Mar 2023 | Hotfix: Patch notes |
Showing the latest 50 of 71. Show all
Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count