How many people are playing Megaquarium right now?

Megaquarium has 51 players on Steam right now, with a 24-hour peak of 118 and an all-time peak of 903 on Sept 2018.

What is the all-time peak player count of Megaquarium?

903 concurrent players on Sept 2018.

When was Megaquarium released on Steam?

Megaquarium was released on Steam on 13 Sep 2018.

Megaquarium

30 announcements · from Megaquarium’s Steam news feed

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Everything Updates15 Major updates2 In-game events3 Releases2 Sales1 Esports1 Community8

Game update5 Jun 2026v5.1.5 patchDear 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: menuTag is now added to tags automatically on load giving better forward and back compatibility with custom objectives. · Modding: Blue and Red Slushie sales are now tracked…Game update19 Apr 2026v5.1.4 patchDear 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 reloaded that game.Game update16 Apr 2026v5.1.3 patchDear 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 Time Trial where it would not be checked unless a new animal was added. · Fixed bug: Staff could be spawned with no skills if you started a sandbox at rank 1. · Fixed bug: Exp…

Published	Kind	Announcement	Build
5 months ago	Game update	v5.1.2 patch 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 updates to reduce CPU load in late-game aquariums with many tanks combined into a single system. · Optimisation: Utilise caching and adjusted logic to reduce CPU load from objectiv…	22586304
5 months ago	In-game event	v5.1.0 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 last month, I've chosen a selection of features and improvements and put these into a larger-than-normal update. Let's take a look. Re…	22467655
6 months ago	Game update	v5.0.14 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 Circled v5.0.14 Changelog · UI: Pumps, compressors and pumps reconnect automatically when moved. They can still be disconnected manually and will disconnect when placed outside of ran…	22362401
6 months ago	Game update	v5.0.X patches 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 Freeze campaign. v5.0.12 Changelog · Reduced requirement for Sandbox Trials - Species time trial to 70 species. Well done to everybody who already completed it, you did it on h…

Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.