Fantasy Aquarium is a passive idle game where you collect and raise stylized fish while building a customizable aquarium environment. The game emphasizes aesthetic appeal and atmospheric soundscapes over active gameplay, making it suited for background engagement while working or relaxing rather than as a traditional interactive experience.
About this game
Fantasy Aquarium offers an effortless way to enhance your gaming experience. You can nurture a diverse range of small fish with unique characteristics and construct a vibrant fantasy world from scratch, transforming mundane fish-keeping into an engaging pursuit.
Players, last 37 days
Peak 117 · Low 39
Daily peak concurrent players, sampled once a night from Steam.
What players are saying
▼ Not recommended0 hrs
TL;DR: If you seek a productivity companion with good tunes and white noise options, you can pick Fantasy Aquarium, but you should be aware that it has no active gameplay options at all.
The "productivity companion" part of this game is great, with its tunes and white-noise profiles you can toggle on and off to create a pleasant working environment. Besides the productivity-related features, the game offers almost no gameplay options, and I lost my interest in the game in less than 10 minutes due to this.
As I mentioned in the previous paragraph, there are a few tunes you can select from to listen to, and they are good enough to create a productive, calm study environment. There are a few white noise profiles as well, and they were even better than expected. Unfortunately, these features are the only good things I encountered in Fantasy Aquarium.
There is no interaction with the fish, even at the slightest, and they move like pinballs without any souls. There are no feeding features; you can't learn about them, you can't play with them, nothing! I understand that this is an idle game, but even mediocre idle games let players play actively to gain a progression advantage. In Fantasy Aquarium, it took me just 5 minutes to get left out with nothing to do in the game. I would expect active feeding/petting elements to progress faster in terms of fish acquisition.
The audio part of the game is great, but the art looks uninspired. Fish reflect their real counterparts, but the overall scenery does not appeal to me. I would expect to see the fish's unique details. Although this is not a problem with larger fish, small fish leak details since they are drawn on a smaller canvas.
The UX is terrible. I was so frustrated by how the menus worked, and they lacked common sense. You can't even focus on one fish after another. First, you must drop focus, and then you can focus on another fish again to view its stats. It looks like no attention is paid to user experience in Fantasy Aquarium; it is too frustrating to navigate through the menu items.
The last point I'd like to address is the optimization. How can a simple all-pixel game use over 10% of my CPU or GPU at times and make my fans activate? I would expect the game to be much more optimized so that I can open it on the side as a screen saver. It is worth noting that you can't even open the game at resolutions other than 1920x1080 or 1280x720, which is a dealbreaker for me.
In the end, I would only suggest getting Fantasy Aquarium if you are looking for an aquarium game that serves as a study companion. If you are after active gameplay, this is not the game for you since it has almost no active elements to progress in the game other than trying your luck to get rare fish.
the tutorial doesn't work, which are supposed to just be images by the way, and somehow I had trouble opening them, and had to use a controller to somehow access them
there's only 2 resolution, 1080, and 720, absolutely nothing else.
the default pixelated font are hard to read, and i had to read a review to find out you can change the font.
the fish "Binder" which shows you all the fishes supposedly have a tip, or a fact, or something, but the text is so pixelated, along with the color of the text, and the background, makes it nearly impossible to read.
I know this game is supposed to be relaxing, but it's surprisingly too much work/too difficult to set up for what it is.
apparently other people had issues with just starting the game, which while I haven't, should still be mentioned.
in terms of gameplay, there really isn't anything to do. it's basically gacha where you roll for fishes, but the UI is clunky and weird. you either keep the fishes and let them generate money, or you sell them. that's it, you can't really interact with them. you can't tap on them or anything.
it's a shame because the style and the positive rating made me wanted to get this game, but I feel like i've been cheated
This demo includes seven small levels in total, as well as 14 upgradeable options for you to play with.Meanwhile, from the release of the demo until the end of October's Steam Next Fest, we'll be launching the "I Am the Ji Ji King" score-chasing event~We'll be looking in the Speed Card Eatery Steam discussion board for the player who can achieve the highest score in the final small level of this demo (you just need to post a screenshot in the discussion board as proof).The final winning player will receive a Steam redemption code for either Fantasy Aquarium or Whimsy Bake&Craft (the player can choose) when the game is released!Hurry and add the game to your wishlist, and come take part in the "I Am the Ji Ji King" event~
🌸Steam Spring Sale 2026 🌸 {STEAM_CLAN_IMAGE}/43223334/a02e98cc647049520fa04349abed4f1d4ef0eea9.png 🌟 There’s never been a better time to dive in—grab your copy while the discount lasts! 🌟 https://store.steampowered.com/app/3183350/ Whether you’ve had us on your wishlist for a while or you’re just discovering us now, jump in and enjoy the adventure. We can't wait to see you in the game!
Hey-hey!--Long time no see~Today is a big day:Our new game, "Whimsy Bake&Craft" is officially out now!Yours old friend, Sharky, will be running a "Trade Market" in Whimsy Bake&Craft! The market prices will fluctuate daily—calling all you financial tycoons to come and make your fortune! But before that...Grab the Bundle! With an extra 20% OFF!!Thank you all for your continued support for "Fantasy Aquarium." I hope to see you again in "Whimsy Bake&Craft"!
Posts come from Steam's official announcements feed.