Steam

Megaquarium

Also known as Megaquarium, m, megaquarium

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.

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Last update

9 Jun 2026

Original sources

Latest update

Patch notesPublished 23d ago

v5.1.5v5.1.5 patch

Dear Curators, A few small bug fixes this time. Details below. Tim Twice Circled v5.1.5 Changelog Fixed bug: Schooling Bannerfish had a warning icon but nothing listed unless Invertebrilliant DLC was installed. Modding:…

2 changesFixCompatibility

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Latest updates

Update history

Browse past updates and patch notes for this game.

21updates

April 2026
Dear Curators, Just a single bug fixed, introduced 2 patches ago with the optimisation updates. Tim Twice Circled v5.1.4 Changelog Fixed bug: simulation stalled if you added lights to a polar dome, saved and then reload…v5.1.42 changesFixPatch notes19 Apr 2026
Dear Curators, This patch contains bug fixes. Tim Twice Circled v5.1.3 Changelog Fixed bug: game was giving 'eat or damage' warnings incorrectly for Button Polyps (heavily armored). Fixed bug: minor issue with Species T…v5.1.37 changesFixBalanceStore16 Apr 2026
Dear Curators, This patch contains bug fixes and some minor performance improvements that could help very large aquariums. Tim Twice Circled v5.1.2 Changelog Optimisation: Reduced the frequency of multi-tank system upda…v5.1.27 changesFixPerformancePatch notes02 Apr 2026
March 2026
v5.1.0 Replay the base campaign with collection DLCs plus other improvementsHello 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.…Eventv5.1.022 changes1 numericFix25 Mar 2026
Dear 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 Circl…v5.0.1414 changesFixServerPatch notes16 Mar 2026
February 2026
Dear Curators, All patches associated with the v5.0 release will be combined into this post to keep things tidy. Tim Twice Circled v5.0.13 Changelog Fixed bug: Calcium Reactor was not available in 3. Sulasi in the Deep…v5.036 changesFixGameplayStore25 Feb 2026
Megaquarium's latest expansion is out now! Megaquarium Invertebrilliant Collection A huge gameplay update has also gone live. For more information on what was included, check out these blog posts: view Convert to capsul…4 changesGameplayPatch notes25 Feb 2026
New 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. Megaquarium Invertebrilli…11 changesUI/audioGameplayStore18 Feb 2026
New Tanks, new design challenges - Megaquarium: Invertebrilliant CollectionNew 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. Megaquarium Invertebrilli…Event5 changesStoreGameplay12 Feb 2026
New 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. Megaquarium Invertebrilli…7 changesGameplayUI/audioStore05 Feb 2026
Hello Curators, No major changes. Another small patch fixing minor sandbox issues. Details are available in the changelog. Tim Twice Circled v4.2.8 Changelog Fixed bug: In Sandbox, various side objectives were being gen…v4.2.81 changeFixPatch notes02 Feb 2026

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