If you’ve ever wanted to run your own ocean-themed attraction, Megaquarium delivers a satisfying management experience built around designing, expanding, and fine-tuning a bustling aquatic park. Instead of lions and elephants, you’ll be caring for fish, crustaceans, jellyfish, corals, and other marine life—while still dealing with the classic business sim challenge: keeping both your animals and your guests happy.
You start small with just a handful of tanks and species, then gradually grow into a larger operation as you learn what each creature needs to thrive. Success isn’t just about adding more aquariums—it’s about managing the details. Different animals come with different requirements, and your park’s day-to-day performance depends heavily on smart planning, efficient layouts, and steady upgrades.
Staff management also plays a major role. As your aquarium expands, you’ll need to hire employees with the right skills to keep everything running smoothly. Picking the wrong staff—or failing to organize your team properly—can quickly affect animal care and visitor satisfaction. At the same time, guests expect more than just tanks to stare at, so you’ll also be building amenities like restaurants, toilets, and gift shops. Decorative items let you personalize the park, helping your aquarium feel unique rather than purely functional.
Megaquarium ties progression to visitor engagement. When people stop to admire your exhibits, you earn points that can be invested into research, unlocking more content and letting you discover new species. There are 97 different animals to find, which adds long-term goals and plenty of variety as you expand your collection. Just be prepared to balance ambition with budget, because some species are significantly more expensive to acquire and maintain than others. Keeping a close eye on finances becomes increasingly important as you scale up.
To ease players in, the game includes a campaign mode with 10 levels designed to teach the fundamentals and gradually introduce more complex systems. If you’d rather set your own pace—or you’re looking for a tougher challenge—Sandbox mode puts you in full control, asking you to manage everything independently as you build your dream aquarium from the ground up.
For players looking to grab it at a lower price, Megaquarium is listed at $7.49 on Steam until January 21, 2026, reflecting a 70% discount.
The game is also widely praised by the community. It holds a very strong rating on Steam, with 95% positive feedback across more than 3,500 reviews. That said, it isn’t without criticism. Some players mention that the interface can be hard to understand at first, and others aren’t impressed by the graphics. A few also feel the difficulty spikes too sharply, especially once your park grows and the number of systems you’re juggling increases.
Overall, Megaquarium is a solid pick for fans of management and simulation games who enjoy optimization, steady progression, and the challenge of running a visitor-focused business—this time with an underwater twist.
