How many people are playing Megaquarium right now?

40 people are playing Megaquarium on Steam right now, making it the 3319th most played game on Steam. In the last 24 hours it peaked at 67 players. The number updates every few minutes.

What is Megaquarium's all-time peak player count?

Megaquarium's highest concurrent player count on Steam is 917, reached in September 2018.

Is Megaquarium good? What do Steam reviews say?

95% of 3,462 Steam user reviews are positive (Overwhelmingly Positive).

How much does Megaquarium cost on Steam?

Megaquarium costs $24.99 on Steam (US). The lowest price we've recorded is $7.49.

Does Megaquarium work on Steam Deck?

Megaquarium is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Megaquarium

by Twice Circled · Released Sep 13, 2018

Steam Deck PlayableLinux & Deck: Platinum

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Players now

#3,319

▼ 20.0%vs 24h ago · updates every minute

Review score

95% positive

Overwhelmingly Positive3,462 reviews

Owners (est.)200K–500K

24h peak

Highest seen917

Sep 20188.2 years ago

Price on Steam

$24.99

Lowest ever $7.49 Oct 2026

RisingSteadyFalling

Players -20.0% in the last 24 hoursUpdated 11:49 UTC · tracking since 2017-10-01

Concurrent players

Last 7 days

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Players onlineSteam sale started

Media & details

Screenshots, achievements, specs and price history from Steam.

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Where to buy

Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.

Steam Official

Prices update every 6 hours

$24.99

Buy

Other authorized stores

No authorized Steam key store lists this game right now.

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Editions and bundles on Steam

MegaquariumEdition
$24.99
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Bundles with this game (3), biggest discount first

Megaquarium: New Player Bundle (Freshwater)Bundle
$34.18
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Megaquarium: New Player Bundle (Freeze)Bundle
$35.08
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Megaquarium: Complete AnthologyBundle
$60.30
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Reviews

95% positive of 3,462 · Overwhelmingly Positive · Live from Steam

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Steam Deck

Works, but may need extra effort. Results from Valve's own testing.

Steam Deck Playable

!Controller glyphs do not match deck device
!Text input does not automatically invokes keyboard
✓Default controller config fully functional
✓Interface text is legible
✓Default configuration is performant
iExternal controllers not supported primary player

Steam Deck

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Patches & builds

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.

Nov 3, 2026, 10:37 AM UTC
Build 26135418−10.9 KB539 MB on Windows
Changed: Windows, Mac, Linux (3 downloads)
Patch notesv5.1.6 patch
Jun 5, 2026, 9:43 AM UTC
Build 23545443the current build when we started tracking539 MB on Windows

Betas and other versions (1)

Jun 5, 2026, 9:43 AM UTC
beta · build 23545443
Early access to new features. Unstable.

Patch notes

Jun 5, 2026
Patchv5.1.5 patch
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 tags automatically on…
Apr 19, 2026
Patchv5.1.4 patch
Dear 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.
Apr 16, 2026
Patchv5.1.3 patch
Dear 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 not be checked unless…
Apr 2, 2026
Patchv5.1.2 patch
Dear 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 late-game aquariums…
Mar 25, 2026
Patchv5.1.0 Replay the base campaign with collection DLCs plus other improvements
Hello 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 from players over the…
Mar 16, 2026
Patchv5.0.14 patch
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 Circledv5.0.14 ChangelogUI: Pumps, compressors a…

Other news (5)

Nov 2, 2026
Announcing: Plantlife!
Dear curators, I have some exciting news to share. I have been working on a brand new game. Introducing Plantlife: Market Garden Simulator! Plantlife features 100 crops each with their own unique care requirements to master - Plan your sowing schedule, tend yo…
Feb 25, 2026
Megaquarium: Invertebrilliant Collection is out now!
Megaquarium'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 update, then please let m…
Feb 12, 2026
New Tanks, new design challenges - Megaquarium: Invertebrilliant Collection
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. Zooming in on magnifying and raised tanksMagnifying and raised tank…
Jan 29, 2026
Backdrops and Centerpieces - Megaquarium: Invertebrilliant Collection
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. A new way to display coralsOne of my major goals for this expansion…
Jan 22, 2026
Announcing Megaquarium: Invertebrilliant Collection!
Announcing 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 other objects that help…

Patches & builds

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History

What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.

Review score: 95% on 2026-11-01 → 95% today (3,462 reviews)

Nov 3, 2026New build#26135418
Nov 1, 2026Sale ended$24.99
Oct 31, 2026Sale −70%$7.49 (was $24.99)

History

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DLC

4 items on Steam, newest first.

Megaquarium: Invertebrilliant Collection
$9.9995% positive
Megaquarium: Deep Freeze - Deluxe Expansion
$13.9995% positive
Megaquarium: Architect's Collection
$8.9991% positive
Megaquarium: Freshwater Frenzy - Deluxe Expansion
$12.9997% positive

DLC

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Trading cards

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Megaquarium player count and quick facts

How many people are playing Megaquarium right now?: 40 people are playing Megaquarium on Steam right now, making it the 3319th most played game on Steam. In the last 24 hours it peaked at 67 players. The number updates every few minutes.
What is Megaquarium's all-time peak player count?: Megaquarium's highest concurrent player count on Steam is 917, reached in September 2018.
Is Megaquarium good? What do Steam reviews say?: 95% of 3,462 Steam user reviews are positive (Overwhelmingly Positive).
How much does Megaquarium cost on Steam?: Megaquarium costs $24.99 on Steam (US). The lowest price we've recorded is $7.49.
Does Megaquarium work on Steam Deck?: Megaquarium is Playable on Steam Deck (with small issues), according to Valve's Steam Deck compatibility check.

Live data from Steam, tracked by SteamPlayerBase.

Store info

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.

Developer: Twice Circled
Publisher: Twice Circled
Release date: Sep 13, 2018
Install size: 1 GB minimum
Platforms: macOS · Linux · Windows
Genres: Casual, Indie, Simulation, Strategy · All
Steam app ID: 600480

Megaquarium

Key stats

Concurrent players

Media & details

Where to buy

Other authorized stores

Editions and bundles on Steam

Reviews

Steam Deck

Steam Deck

Patches & builds

Patch notes

Patches & builds

History

History

DLC

DLC

Trading cards

Megaquarium player count and quick facts

Related games

More from Twice Circled

Related games

Store info

Megaquarium player count and quick facts

History

Steam Deck

Patches & builds

Patch notes

DLC

Related games

More from Twice Circled