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This content requires the base game Megaquarium on Steam in order to play.

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Planned Release Date: Feb 25, 2026

This content plans to unlock in approximately 4 weeks

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About This Content

Invertebrates are the largest and most diverse species group on the planet and among them are some of the strangest animals known to man.

The Invertebrilliant Collection includes a hand-picked selection of the most weird and wonderful, plus the tools required to show them at their very best!

Critters to collect

The collection features 15 new animals from across the invertebrate spectrum: the punchy Boxing Shrimp, striking Hammer Coral and fluorescent Variable Neon Slug to name but a few.

Backdrops and Centerpieces

Designed specifically to go at the back of your tanks, Backdrops offer new opportunities to create dazzling vertical coral displays.


Centerpieces are large rock formations complete with caves for more reclusive species. These aquascaping heavy-weights can be customised with your favourite corals and other static invertebrates. Sit back and watch them colonise!

A world beneath your feet

Underfloor Tanks offer a bird's eye view of the reef, which is sure to delight and amaze your guests. Meanwhile, crafty curators will exploit the underfloor nature of these tanks to squeeze even more from their aquarium layouts!

Up close and personal

Magnifying Tanks zoom in on diminuitive species, allowing guests to view them in high detail. Savvy aquarists will use them to maximise the prestige generated from these miniature marvels.


Raised Tanks bring the tank floor up to eye-level, allowing guests to appreciate substrate-dwelling inverts in all their glory!

Vegetation station

A selection of new plants can be mounted among your corals on Backdrops and Centerpieces. This brings new strategic and aesthetic depths to the design challenge.

The list goes on!

The fun continues with efficiency boosting accessories, an invertebrate-themed poster and new food and drink additions.


Beautify your aquarium with reef-themed paints and a treasure trove of custom substrate options.

Build it your way

All features within the Invertebrilliant Collection integrate seamlessly into the Sandbox experience. Additional Sandbox objectives are available, specifically designed to take advantage of everything the collection has to offer.

Features

  • 15 tropical marine invertebrate species
  • Backdrops and Centerpieces
  • Underfloor, Magnifying, Vista and Raised Tanks
  • 4 mountable marine plants
  • 2 accessories, 1 poster, 1 food facility and 1 drink facility
  • 3 paints and 5 custom substrates
  • Additional objectives to enrich the sandbox experience

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • 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
    Recommended:
    • Requires a 64-bit processor and operating system
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Minimum:
    • 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
    Recommended:
      Minimum:
      • 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
      Recommended:
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