Twice Circled (Big Pharma) has updated their aquarium management game Megaquarium with a ton of new features.

The main new feature is an expansion of the sandbox modes. Players can choose to have all plants, animals, and equipment unlocked, as well as unlimited money.

There’s also new filters to the search function, a few new plants, rebalances to the existing plants, and more. You can read the full details here and here, and check out a lengthy new development diary here.

Here’s a rundown on the game:

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.

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.

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!

Key Features:

• 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

Megaquarium is available on Windows PC, Mac, and Linux via Steam and GOG for $24.99.