Save 10% on My Joyful Aquarium on Steam

All Games > Casual Games > My Joyful Aquarium

My Joyful Aquarium

My Joyful Aquarium is a relaxing game where you build your dream fish tank. Take good care of your fish’s comfort, upgrade their environment, and explore thousands of breeding possibilities. With offline progression, your aquatic world thrives even when you’re away! Ready to dive in?

All Reviews:

Positive (13) - 100% of the 13 user reviews for this game are positive.

Release Date:

Sep 16, 2025

Developer:

Error 300

Publisher:

Error 300, Gamersky Games

	Interface	Subtitles
English	✔	✔
Japanese	✔	✔
Korean	✔	✔
Polish	✔	✔
Simplified Chinese	✔	✔
Traditional Chinese	✔	✔

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“My Joyful Aquarium is meant to be a cozy idle game that allows getting pretty aquarium that is absolutely stress-free, meaning you won't find your fish swimming upside down if you were too busy to log in for a week. At the same time, we want the aquarium to be customizable with plenty of fish species, plants and decorations.

At this point we have a feeling that despite the tutorials the start of the game often leaves the players confused and unsure what to do. we would like to fix this, but we know the game too well to see which parts of it may be non-obvious to someone who is seeing it for the first time. So, we will appreciate any feedback on improving the learning curve!”

Approximately how long will this game be in Early Access?

“3-4 months”

How is the full version planned to differ from the Early Access version?

“We plan to add more fish breeds and decorations, as well as implement any feedback we will get along the way. We are also looking to add quests and achievements so the players would get a sense of progress/achievement on top of the cozy experience.”

What is the current state of the Early Access version?

“The game is fully playable, all the features listed on the store page are implemented.”

Will the game be priced differently during and after Early Access?

“We plan to gradually raise the price as we ship new content and features”

How are you planning on involving the Community in your development process?

“We welcome all feedback the Community would have for us! Please use the discussion board or join our Discord if you would like to report a bug or request a feature.”

Buy My Joyful Aquarium

INTRODUCTORY OFFER! Offer ends September 30

-10%

$6.99

$6.29

Add to Cart

See all discussions

Report bugs and leave feedback for this game on the discussion boards

About This Game

Have you ever dreamed of building your own underwater world bursting with colorful fish, beautiful decor, and a personal touch that’s uniquely yours? My Joyful Aquarium lets you bring that dream to life... and beyond! It's time to let your creativity go wild and explore nearly endless possibilities.

Pick your favorite fish eggs, drop them into your aquarium, and wait for your new aquatic friends to emerge. Make sure your little fish has everything it needs to thrive and grow into its adult version. Well done, you've just discovered your very first species... only thousands more to go!

Make your aquarium truly your own! With a wide variety of decorations, plants, boosters, and backgrounds, you can build a beautiful, one of a kind underwater world - just perfect for your little fish pets. Will you manage to make them feel at home?

Place your chosen fish in special breeding tanks to discover completely new species. Experiment with endless combinations and new pairings to uncover even more exciting possibilities. Remember - the happier your fish are, the easier it is to breed them.

Your aquarium keeps growing even while you're away, so drop by whenever you feel like it. Admire your specimens in the fish atlas, collect and spend joy points, plan the future of your tank and keep your underwater adventure flowing!