A theme park management tycoon game with an aquatic twist. 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.
Recent Reviews:
Very Positive (18) - 94% of the 18 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (478) - 89% of the 478 user reviews for this game are positive.
Release Date:
Sep 13, 2018

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Recent updates View all (17)

February 17

Patch v1.2.1

Mini patch with a couple of things that didn't quite make it into the big February update, plus a couple of bonus fixes/features. :)

- Upgraded underlying Unity version which should hopefully fix the 'Citrix workstation' bug. Let me know if you still encounter this issue.
- Added 'Exclusive fullscreen' mode.
- Added tooltip to point button toggle in top right.
- Fixed bug where messages don't reload if you drop an animal with the message window closed.
- Fixed bug where floor arrows blocked 'attraction aura'

For the next couple of weeks I'm going to be working through the backlog of small and medium sized feature requests that have built up over the weeks and months and making some headway through that.

I'm also going to be experimenting with some tweaks to the prestige generation formula and the way that this information is communicated to you. :steamhappy:
4 comments Read more

February 7

February Update! v1.2.0

Hello all, a new update has just gone live with a bumper crop of new features and improvements. Let's take a look.

New search menu

You can now bring up a new search menu in-game which allows you to filter the contents of the build menu to just the items you are interested in!

For example: by writing "tropical shoaler count:0" you will see only tropical animals with the shoaler care requirement, which you currently have zero of in your aquarium.

For more examples check out the latest episode of the official Megaquarium vlog:


You can bring the menu up by pressing the Return key (this is rebindable) or by clicking the search button at the top of the build menu.

New plants
(Click on thumbs to enlarge)

5 new plants have just been added to the game. The focus here was adding more large plants and also adding more variety in terms of the gameplay purpose of each plant.

For example, the all new 2x3 Shellweed is only worth a few additional plants but adds a lot to the rock count and a whopping 50 filter power!

Meanwhile the Velvet Horn is more balanced with a mixture of plants, rocks and filter power.

I've also rebalanced some of the existing plants to make the differences between them more drastic. Some are excellent for plant count, while others are strong passive filterers and then there are the ones which give a range of minor benefits.

New sandbox modes

The final big feature is an expansion to the sandbox mode. There are now additional options which allow you to unlock all animals and equipment from the start of your game, as well as toggle access to unlimited money.

I know some people have missed having a fully "creative" mode with absolutely no restrictions and these new settings allow you to do that.

I've also added a set of new presets to challenge you to try the game in different formats. Let's take a look:

Full unlock - here you have access to everything from the start but don't have unlimited money, so you still have to create a balanced aquarium. It's harder than it sounds!

Research mode - here you have unlimited money but you still need to work through the ranks to unlock all the animals and equipment. This is definitely a relaxed mode where you can proceed at your own pace however it does reduce the burden on managing your staff efficiently.

Creator mode - the ultimate sandbox experience. Everything is unlocked and you have unlimited money.

Just like all the other presets you can tweak individual settings to your own preferences.

And the rest...
That's the major stuff out of the way, but the update comes with all these minor improvements/fixes too:

  • Added drag-to-paint for tiles.
  • Added rebindable hotkeys for all the buttons in the top left.
  • Rebalanced plant/rock/cave lover requirements. Some are also worth extra prestige.
  • Added info panels for any animal given to the player as a gift in the campaign so you can see what its needs are before picking it up.
  • Added difficulty to save game info.
  • Switched to proper fullscreen borderless window mode. If you click on your other monitor it won't minimise the game.
  • Fixed animation speed going faster than simulation.
  • Optimised build menu so that it loads quicker.
  • Optimised animations in general for better FPS in large aquariums, especially on low detail mode.
  • Redesigned point bubble system to increase performance.
  • Optimised objective checking to increase performance.
  • Zoning interface now scales/wraps when it gets to full.
  • Slightly increased opacity of build menu UI.
  • Added feeding skill requirement to Blue Spotted Ribbontail Ray.
  • Striped boxfish no longer eats starfish.
  • Danger to tooltip now says "Starfish with size x or less".
  • Fixed bug where tank counts were calculated incorrectly.
  • Slightly increased size of tooltip text and width.
  • Fixed mega light lights.
  • Megalopolis tank enquiry objective tells you to check log.
  • Fixed objective tooltip in level 1 tutorial with incorrect description of button.
  • Tweaked active swimmer icon so that it always says the required volume even when met.
  • Added rounded tank and kreisel tank icons.
  • Fixed minor display bugs for needs rounded, needs kreisel and congeners only icons.
  • Fixed supersonic walking bug.
  • Fixed issue where tooltip hangs over edge of screen on higher than 1080p resolutions.
  • Added kreisel tank description.
  • Fixed a number of portraits positions.
  • Fixed double unlock of some science items in sandbox modes
  • If you have already unlocked everything at a new rank it skips the "newly available" screen.
  • Animal mods can create a new animal category without updating gui.data, see Azure Demoiselle for example.
  • Game is slightly more resilient to mods being added/removed midgame

Hope you enjoy the update guys, please let me know if you notice any bugs via the Steam discussion forums as usual. https://steamcommunity.com/app/600480/discussions/0/ :steamhappy:
22 comments Read more


“A charming watery theme park management game where fish are friends, not food. Until they eat each other or you forget to feed them.”
86 – PC Gamer

“Megaquarium is an fantastic tycoon title with a surprising amount of depth.”
85 – GamingTrend

“As a tycoon game, Megaquarium strikes a very nice balance between having too much complexity vs. not having enough depth to remain entertaining.”
80 – Gaming Nexus

About This Game

From the creator of Big Pharma comes a brand new economic simulation game. Megaquarium follows in the footsteps of classic theme park management tycoon games and adds an aquatic spin!

A living simulation

Starting with just a few tanks and the most basic of livestock, you’ll grow your aquarium to a thronging metropolis filled with hundreds of guests, tens of staff and a multitude of different aquatic lifeforms, each with their own unique care requirements.

Design your exhibits

Megaquarium features almost 100 different marine species including fish, sharks, crustaceans, corals, jellyfish, other invertebrates and even a turtle! You’ll be spoilt for choice as you design, decorate and populate your tanks.

The right staff for the job

You won’t get far without the right staff. Choose who to hire based on their skills and future potential. Will you train up a team of multi-disciplined staff or a set of super-focussed experts? You’ll have to weigh up the pros and cons of each strategy and work out what is right for your aquarium.

Research new animals and technology

As guests experience your displays you’ll earn points which you can assign to discovering new livestock and equipment. Keep upgrading and expanding your aquarium and work your way up to the most prestigious animals and displays in the aquarium industry.

Manage your finances

The latest fish might look cool, but have you considered its impact on your aquarium’s bottom line. Tricky animals may require new staff to be hired, expensive fish food or supplements and the best tanks are a hefty investment! As aquarium curator you’ll need to master creativity and economics to succeed.

Manage your guests!

Keep your guests happy by providing them with seating, food, drinks and toilet facilities. Then at the end of their visit, direct them through the gift shop to boost your profits!

Curator school

Start your career in the campaign mode where you’ll learn everything you need to know about designing and managing an aquarium. Each of the 10 levels challenges you to build an aquarium with unique gameplay conditions and objectives, while new features and concepts are explained along the way.

Dive into the sandbox

Next explore sandbox mode where, with customisable settings and a random challenge generator, you can find virtually unlimited fish-related gameplay!

Easy to learn, difficult to master

Running an inefficient aquarium is easy. To really thrive and take on the greatest challenges you’ll need a lateral thinking brain and attention to detail. Will you group your animals by food type, water quality or something else entirely? Will you locate your equipment in a centralised hub using pumps or spread them out embracing the zoning system? How will you optimise your layout so that visitors can find your tanks and staff can easily access them?

Every decision you make in Megaquarium has consequences. Your choice of animals, filters, tanks, staff and layout all have subtle and far reaching effects on each other. Experiment, adjust, learn, reapply and most importantly, have fun!


  • 10 level ‘learn the game’ campaign
  • Sandbox mode with full customisation and random challenge generator
  • 97 species of livestock to discover each with their own unique care requirements
  • Over 100 different objects to place including filters, skimmers, nitrate reactors, chillers, heaters, food boxes, equipment stations, doors, gates, food and drink dispensers, balloon stands, decorations, paint and more!
  • Plan staff talks down to the subject, time and frequency to increase your point income even further!
  • Gift shop and guest facilities
  • Fully featured theming and decoration system

System Requirements

Mac OS X
SteamOS + Linux
    • Requires a 64-bit processor and operating system
    • OS: Windows 7 64 bit
    • Processor: Intel Core i5-4690 or AMD Ryzen 7 2700U
    • Memory: 8 GB RAM
    • Graphics: GeForce GTX 560 or AMD Radeon HD 7770
    • Storage: 1 GB available space
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: OSX 10.10 or higher (64bit)
    • Processor: 2x 6-Core Intel Xeon 2.66 GHz (Mac book pro circa 2016)
    • Memory: 8 GB RAM
    • Graphics: AMD Radeon HD 7950
    • Storage: 1 GB available space
    • Requires a 64-bit processor and operating system
    • Requires a 64-bit processor and operating system
    • OS: 64bit operating system
    • Processor: Intel Core i5-4690 or AMD Ryzen 7 2700U
    • Memory: 8 GB RAM
    • Graphics: GeForce GTX 560 or AMD Radeon HD 7770
    • Storage: 1 GB available space
    • Requires a 64-bit processor and operating system

What Curators Say

46 Curators have reviewed this product. Click here to see them.

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