Steam app 600480 · updated 12 Sep 2026, 20:14 UTC
The public aquarium simulator. Design your displays, look after your fish, manage your staff and keep your guests happy! It's all in a day's work as the curator of your very own Megaquarium.
720 hourly samples, with the daily peak drawn over them. Weekends are shaded.
103 months, October 2017 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 436 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 284 hourly samples. Each dip is a night. Weekends are shaded.
Megaquarium was released on 13 Sep, 2018.
| Language | Full audio |
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| English | |
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| Portuguese - Brazil | |
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| Japanese |
A blank audio cell means full audio was not marked in the returned language list.
25 achievements in total.
50 developer announcements, Jun 2021 to Jun 2026 · times in UTC
Dear Curators,A few small bug fixes this time. Details below.Tim Twice Circledv5.1.5 ChangelogFixed bug: Schooling Bannerfish had a warning icon but nothing listed unless Invertebrilliant DLC was installed.Modding: menuTag is now added to…
Patch notesDear Curators,Just a single bug fixed, introduced 2 patches ago with the optimisation updates.Tim Twice Circledv5.1.4 ChangelogFixed bug: simulation stalled if you added lights to a polar dome, saved and then reloaded that game.
Patch notesDear Curators,This patch contains bug fixes.Tim Twice Circledv5.1.3 ChangelogFixed bug: game was giving 'eat or damage' warnings incorrectly for Button Polyps (heavily armored).Fixed bug: minor issue with Species Time Trial where it would…
Patch notesDear Curators,This patch contains bug fixes and some minor performance improvements that could help very large aquariums.Tim Twice Circledv5.1.2 ChangelogOptimisation: Reduced the frequency of multi-tank system updates to reduce CPU load in…
Patch notesHello Curators,It's been a busy time since the launch of the Invertebrilliant Collection last month. Thank you to everyone who purchased the DLC, and welcome to all the new players who have joined us since the launch.Based on the feedback…
Twice CircledDear Curators,This patch is mostly bug fixes, but there are a couple of niceties such as pumps reconnecting automatically after moving and some extra info regarding mounting points while placing corals.Tim Twice Circledv5.0.14 ChangelogUI…
Patch notesDear Curators,All patches associated with the v5.0 release will be combined into this post to keep things tidy.Tim Twice Circledv5.0.13 ChangelogFixed bug: Calcium Reactor was not available in 3. Sulasi in the Deep Freeze campaign.v5.0.12…
Patch notesMegaquarium's latest expansion is out now! A huge gameplay update has also gone live. For more information on what was included, check out these blog posts:Convert to capsule:If anyone notices any bugs to do with either the new DLC or…
Twice CircledNew DLC!If you've not heard, Megaquarium's getting a new DLC. Head over to the store page for a rundown of what's included. Remember to wishlist if you want a reminder on the day it comes out. Free updateAs I've mentioned in previous posts…
Twice CircledNew DLC!If you've not heard, Megaquarium's getting a new DLC. Head over to the store page for a rundown of what's included. Remember to wishlist if you want a reminder on the day it comes out. Zooming in on magnifying and raised…
Twice CircledNew DLC!If you've not heard, Megaquarium's getting a new DLC. Head over to the store page for a rundown of what's included. Remember to wishlist if you want a reminder on the day it comes out. Free updateAs I've mentioned in previous posts…
Twice CircledHello Curators,No major changes. Another small patch fixing minor sandbox issues. Details are available in the changelog.Tim Twice Circledv4.2.8 ChangelogFixed bug: In Sandbox, various side objectives were being generated using content from…
Patch notesHello Curators,There are no major changes in this update, a player made me aware of an issue that needed an immediate fix. Details are available in the changelog.That "big" update is coming alongside the release of the new expansion next…
Patch notesNew DLC!If you've not heard, Megaquarium's getting a new DLC. Head over to the store page for a rundown of what's included. Remember to wishlist if you want a reminder on the day it comes out. A new way to display coralsOne of my major…
Twice CircledAnnouncing a brand new expansion for Megaquarium: Introducing the Invertebrilliant Collection! This expansion focuses on the world of invertebrates, featuring 15 brand new invertebrates for your collection, as well as many new tanks and…
Twice CircledHello Curators,There are no major changes in this update, the timing is related to a hotfix, the details of which are below.I do have an exciting Megaquarium-related thing to share with you guys soon though! Thank you for your parience,Tim…
Patch notesHello Curators, today's patch contains a set of bug fixes I've been working on over the recent months. Thank you all for your feedback. I read every post. :) For those that are curious what else I've been working on, I have been working on…
Patch notesv4.2.4 Changelog - 16/07/2024 UI: Updated some incorrect Chinese localisations. UI: Added guest count to prestige window. UI: Increased maximum money from 1,000,000 to 10,000,000. UI: Updated Daisy Star Polyp latin name to Knopia…
Patch notesv4.2.3 Changelog - 07/05/2024 Misc: Upgraded back up to Unity 2019.4.40f1 after fixing the issue causing textures and audio files not to load correctly on OSX and Linux. Optimisation note: Upgrading to 2019.4.40f1 has yielded a significant…
Patch notesGreetings curators! Behold the spring cleaning update - an update dedicated to minor improvements and bug fixes that have been raised by the community. Let's take a look! Let your researchers take a break When playing with mods there can be…
Twice CircledGreetings curators! I want to say one last time, thank you all for the amazing response to the launch of Deep Freeze last month. https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ If anyone has enjoyed the…
Twice CircledHello all, I've been delighted by the response to the release of Megaquarium's latest DLC: Deep Freeze last month. https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ But today I'm here for a different…
Twice CircledHello all! Just a quick post from me to promote a Steam Festival that, as players of Megaquarium, you might be interested in. {STEAM_CLAN_IMAGE}/31013793/8373265486d9b8ccc03c2cc7001faa188a22220d.png Cosy Quest is an event dedicated to cosy…
Twice Circledv4.0.19 Changelog - 14/11/2023 Fixed bug: breeding objective in level 2 of Freshwater Frenzy campaign not appearing correctly unless Deep Freeze DLC is also installed. Fixed bug: Missing string after Emperor Penguin trade on level 4 of Deep…
Patch notesThe latest expansion for Megaquarium: Deep Freeze, is out now! https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ I've tried to pull out all the stops on this one. I really hope you enjoy it! If you're a…
Twice CircledThe latest expansion for Megaquarium: Deep Freeze, is coming out next week on the 18th October! https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ In this post we're going to check out some of the…
Twice CircledIn case you weren't aware, Megaquarium is getting a new expansion: Deep Freeze. https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ This time we are focusing on the polar dome, a brand new tank with a whole…
Twice CircledIn case you missed it, Megaquarium is getting a new expansion: Deep Freeze. https://store.steampowered.com/app/2574770/Megaquarium_Deep_Freeze__Deluxe_Expansion/ Today we take a deeper look at some of the new abyssal species and the tricky…
Twice CircledI'm delighted to announce a brand new expansion for Megaquarium: Introducing Deep Freeze! This is Megaquarium's most ambitious expansion to-date, chock full of popular elements from previous expansions plus loads of brand new features…
Twice CircledI'm thrilled to announce that Megaquarium is part of Simfest – the Steam festival celebrating all things related to simulation games. From today through the 24th of July, 10am PDT 2023, you can save 60% off the base game plus 30% off each…
Twice CircledHello aquarium architects. I hope you've had a great start to the year. I've been working on a little update for you guys. Let's take a look. Staff gate added to Architect's Collection Shortly after the Architect's Collection DLC launch, a…
Twice CircledHey! It has been a while since I have posted a Fishblast for you all. From now on Fishblasts will be coming out every 2 months rather than every month. Community build Whenever you are playing a map, it is often a big challenge to keep…
Twice CircledToday is a day I've been looking forward to for ages. SO thrilled to finally announce that Freshwater Frenzy - the first deluxe expansion for Megaquarium will be coming to Switch, Playstation and Xbox on 1st March 2022! I know most of you…
Twice CircledClick-Clack, Click-Clack… Oh hi! Long-time no see, first off Happy New Year! Welcome to my office! Here I carefully write your Fishblast’s every month! I am still recovering from an amazing New Years party, so ignore the empty soda bottles…
Twice CircledMostly bug fixes this time around. Thank you for all your feedback. :) A special welcome to all the new players. I hope you're enjoying your time with the game. If you're enjoying the game and feel like helping out, please feel free to…
Patch notesSome more bug fixes and some balance changes for Sandbox. Thank you for all your feedback. :) Lots of small, inconsequential sounding things in this list, but when they add together they really do make a difference. Sandbox is now playing…
Patch notesA few bug fixes. Thank you for the reports. :) Glad to see everybody enjoying the new expansion! Changelog Fixed bug: you could place Jetty and Bridge tanks over bridges. Fixed bug: Tanks not being visited under certain conditions. Balance…
Patch notesMegaquarium: Architect's Collection is out now. What are you waiting for? Go get it! https://store.steampowered.com/app/1339440/Megaquarium_Architects_Collection/ I hope you enjoy it! New achievements To celebrate the launch of the…
Twice CircledThe Architect's Collection will launch alongside a huge update the base game on 11th November 2021. In the last post I went in-depth on the new sandbox mode. This time I'll shed some light on the other most exciting new features. External…
Twice CircledThe Architect's Collection will launch alongside a huge update to the base game on 11th November 2021. https://store.steampowered.com/app/1339440/Megaquarium_Architects_Collection/ In this post we'll take an in-depth look at the changes…
Twice CircledIntroducing the Architect's Collection: a brand new expansion for Megaquarium! I'm going to talk about the design process for some of the key features later in the post but before we get started, head over to the store page for a full…
Twice CircledSummer has officially ended, and the weather is getting colder. But does that also happen under the sea? I am no aquatic expert, but I do know that during winter the oceanwater feels warmer even than in summer. However the deeper you dive…
Twice CircledHappy Birthday to Megaquarium.. Happy Birthday to Megaquarium.. Oh hi! Sorry, I completely forgot this was on record. Welcome back to a brand new Fishblast. I hope you had an amazing summer, I did! But here we are releasing a new read for…
Twice CircledThe main reason for this patch is the first bullet below. Otherwise it's just a few tweaks and bug fixes that I've come across while working on new content. ;) Changelog Rolled back Unity version to 2019.4.24f1 as it was causing a crash on…
Patch notesHey and welcome back to a brand new summer edition of the Fishblast! We are going to be looking into some fantastic creations by our modding community and building creations by the designers hidden in our community. Community build As…
Twice CircledChangelog Rolled back Steamworks version to previous version as it was causing a crash on some users' systems.
Patch notesA small patch with a few bug fixes. Changelog Fixed bug - couldn't click anything after offering incorrect trade item. Improved robustness of simulation with additional error catching.
Patch notesA small patch with a few bug fixes. Changelog Fixed bug - cashflow was appearing garbled when PC culture set to French. Fixed bug - breeding animal numbers incrementing additional times. Fixed bug - animation blending was not working in…
Patch notesAfter spending the last 4 weeks in beta, v2.2.2 is now live for all players. Thank you to everybody who took part in the beta and provided feedback. I'm thrilled to hear so many of you are enjoying a boost in performance! Below is a…
Twice CircledWelcome back to another Fishblast, this month's edition is all about extinct creatures. We will be looking into some amazing things the community has done with the theme. Did you know that Megaquarium has a very active extinct creature…
Twice CircledEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| Megaquarium: Invertebrilliant Collection | WindowsmacOSLinux | 25 Feb 2026 |
| Megaquarium: Deep Freeze - Deluxe Expansion | WindowsmacOSLinux | 18 Oct 2023 |
| Megaquarium: Architect's Collection | WindowsmacOSLinux | 11 Nov 2021 |
| Megaquarium: Freshwater Frenzy - Deluxe Expansion | WindowsmacOSLinux | 04 Jun 2020 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Megaquarium.exe | windows | ||
| Launch | Megaquarium.app | macos | ||
| Launch | Megaquarium.x86_64 | linux |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG