NEO AQUARIUM - The King of Crustaceans -

NEO AQUARIUM - The King of Crustaceans -

Calappa Games · 2015 · Indie, Action, Underwater, Shooter, Bullet Hell

PC
Very Positive80% · 250
Best price 75 All-time low
$1.79-80%
$8.99⭐ lowest tracked
Steam Buy at Steam

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Steam
Steam
Standard Edition · Steam
-80%
$1.79
$8.99
Buy

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Eneba
Eneba
Standard Edition · Steam
$3.90
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Screenshots

About NEO AQUARIUM - The King of Crustaceans -

TWO FISH ENTER, ONE FISH LEAVES.

This is a competitive 3D shooting game based on crustaceans.

Yes, you read that right.

You get to control unique creatures like lobsters, crabs and barnacles, in a wild water world that exceeds all human sense.

Experience intense battles that take place in “NEO AQUARIUMS,” dimensionally linked aquariums that promote the evolution of organisms, and use skills that are unique to arthropods, such as “molting” and “self-amputation.”

You can even customize your own aquarium by placing the small creatures and pieces of terrain you earn in battle. Use your wild nature and your strategic skills to become the King of Crustaceans!

Game Modes



- Story Mode
In this mode, you battle all kinds of aquatic creatures while enjoying the tantalizing story.

- Free Battle Mode
You can play local competitive multiplayer for up to 4 players using split-screen, or you can battle online via Steam network.

- Aquarium Edit Mode
Here you can use the parts you earned in Story Mode to customize your own stages. The creatures you place will come to your aid during combat.

Message from the creator



Have you ever really looked at the crawfish and crabs you eat so casually every day?

Their hard shells, their sharp claws and spines, their 10 legs that they can amputate in case of emergency, their compound eyes that allow them to see in all directions...

They are beautiful fighting creatures, shaped by nature to survive with only their bodies in the hostile environment of the deep sea.

In most video games, human beings shoot lasers and fly through the sky as if it’s nothing, but I asked myself the question: “What if lobsters and crabs had these kinds of powers?”

Nature’s strategies sometimes far exceed the creativity of humans.

If you reach a deadlock in the human struggles of your daily life, try turning your eyes towards nature; I’m sure you’ll find quite an unexpected battle for survival there.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jun 29, 2026
I'm all for over-the-top off-the-wall wacky ideas for games, and I was more than willing to play a goofy game where you play as lobsters and shoot other crustaceans with laserbeams. But this game is barely even functional. The framerate is capped at 30 on a PC, the controls and actual gameplay mechanics are poorly explained (if at all), the controls are clunky and schizophrenic, and the game won't even start properly until you close an error tab that pops up every time it starts. It crashes before it even starts sometimes, and doesn't seem to know what to do with itself once you alt-tab out of it. All in all, a very sloppily-made and poorly-optimised game. I went into it with tempered expectations, and was still left disappointed. I know it was released 11 years ago, but I've played Steam games released much earlier by this point, and they still work as intended, so I don't really understand what went wrong here.
2 found this helpful
Recommended Jun 6, 2026
this is more than just a game. it's an experience. in all seriousness though, i do really like neo aquarium. despite the price (definitely buy on sale), janky controls, and little gameplay, it's genuinely a fun game. the soundtrack is surprisingly good, though i haven't bought it or anything. additionally, my laptop is not suitable for gaming. it's probably able to fry an egg when i run stardew valley. despite this, though, the game runs fine on my laptop. it occasionally crashes during the squilla fight when it uses its level 3 ability, but that's when there's already a lot of particles. i'll give it the benefit of the doubt and blame my laptop for this. sometimes i just go on here to decompress and play something stupid after a long day. it's definitely one of those games that are fun to stream on discord and read aloud with your friends. highly recommend.
1 found this helpful
Recommended Jun 3, 2026
this game freakin' blows
1 found this helpful
Recommended Jun 1, 2026
this game gives me anxiety I couldnt play it long
1 found this helpful
Recommended May 25, 2026
It's fun
1 found this helpful
Not recommended Jun 22, 2026
Played for 5 minutes and this game does not represent what videos show, honestly, it sucks, the movement is so disgusting....

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