Zen Aquarium

About

Zen Aquarium is a single player simulation game. It was developed by Astro Cat and was released on September 25, 2025. It received overwhelmingly positive reviews from players.

Zen Aquarium offers a tranquil, idle fish tank experience inspired by classic aquarium screensavers, featuring a calm underwater world where fish continuously appear and swim gracefully. Designed for relaxation and mindfulness, it provides soothing visuals and ambient sounds ideal for ASMR lovers and those seeking a peaceful escape without any gameplay stress. Enjoy a serene, ever-changing aquatic scene that promotes calm and harmony.

Genres & Tags

Simulation

Play Modes

Single-Player

Skip User Reviews

97%

Audience ScoreBased on 108 reviews

music6 positive mentions

gameplay3 negative mentions

Zen Aquarium offers a beautifully relaxing experience with stunning visuals and customizable soundscapes, making it perfect for unwinding after a long day.
The game provides a calming atmosphere with smooth fish animations and a variety of ambient sounds, allowing players to create their own unique relaxation environment.
It's a great background app that helps users focus while working or studying, providing a sense of tranquility without demanding attention.

The game lacks interactivity and customization options, leaving players wanting more control over the fish species and tank setup.
Some users find the limited variety of fish species and repetitive music to be dull, diminishing the overall experience over time.
There are technical limitations, such as the absence of auto-saving and support for ultrawide monitors, which can hinder usability for some players.

music
27 mentions Positive Neutral Negative
22%
67%
11%
The music in the game is widely praised for its relaxing and soothing qualities, featuring a customizable soundtrack with eight different tracks and adjustable volume levels. While many players appreciate the ambient and chill vibes, some express a desire for more variety and additional music options. Overall, the soundtrack enhances the calming experience, making it a popular choice for background listening during work or relaxation.
- “Awesome soundtrack with customizable sound features, which elevate the relaxing vibe to a whole new level of perfection.”
- “Very relaxing, chill music, light vibes, fabulous fish.”
- “It's incredibly soothing to drift off to sleep with it, leaving worldly worries behind, and just as wonderful to wake up to its enchanting music and the delightful sounds of nature, all of which you can customize yourself.”
- “All the woo-woo music is pretty silly.”
- “There should be more variety of music; they are all too similar.”
- “Good idea, but very limited fish species and I don't like any of the music.”
graphics
19 mentions Positive Neutral Negative
74%
10%
16%
The graphics in the game are widely praised for their stunning quality and relaxing aesthetic, creating a tranquil atmosphere that enhances the overall experience. Users appreciate the customizable fish and serene lighting effects, which contribute to a living wallpaper feel. While the visuals are described as beautiful and lifelike, some note that the interaction options are limited compared to other similar apps.
- “The visuals are stunning, and the calm atmosphere makes it perfect for unwinding after a long day.”
- “Beautiful visuals, soothing sounds, and the graceful fish make it perfect for winding down after a long day.”
- “The tank’s lighting effects and gentle motion contribute to a serene aesthetic that feels closer to a living wallpaper than a full 3D ecosystem.”
- “Reminiscent of a screensaver from the 2000s, but with modern graphics.”
- “You’re invited simply to watch, listen, and let the tranquil visuals accompany whatever else you’re doing.”
atmosphere
7 mentions Positive Neutral Negative
86%
14%
The game excels in creating a soothing and serene atmosphere through its thoughtful audio options and stunning visuals, making it an ideal refuge for players seeking relaxation. While it may lack depth and interactivity, its calming environment is perfect for unwinding after a long day. Overall, Zen Aquarium offers a beautifully tranquil experience that resonates with those looking for a peaceful escape.
- “The game offers a small but thoughtful range of atmospheric audio options—rainfall, wind, gentle purring, and subtle underwater sounds—that allow you to shape the vibe of your digital environment.”
- “It succeeds in creating an atmosphere that’s soothing rather than showy, making it easy to keep open for long stretches of time.”
- “Zen aquarium delivers a very pleasant and relaxing atmosphere.”
gameplay
6 mentions Positive Neutral Negative
33%
17%
50%
The gameplay is minimalistic and focuses more on creating an atmospheric experience rather than offering traditional simulation mechanics like breeding or customization. While the graphics and fish movements are praised, players seeking deeper gameplay may find it lacking, leading to mixed feelings about the overall experience.
- “Great graphics and fish movements; it would be interesting to see the same solid gameplay on top of that!”
- “You may be unsatisfied with this game if you want actual gameplay, but in other cases, it's simply good :)”
- “Players who approach it expecting features typical of simulation titles—breeding mechanics, tank customization, behavioral systems—may find the experience extremely sparse.”
- “This is an experience built firmly on mood rather than mechanics, and it does not pretend to be anything else.”
- “Gameplay: what gameplay?”
optimization
3 mentions Positive Neutral Negative
67%
100%
The game is well-optimized, allowing it to run smoothly on lower-end machines without significant performance issues, making it accessible for a wider audience. Its clean interface further enhances the overall user experience.
- “This approach makes the experience accessible even for lower-end machines—the game’s performance footprint is small, letting it coexist comfortably alongside other tasks.”
- “Clean interface and runs smoothly.”
- “The game struggles to maintain a stable frame rate, even on mid-range systems, making it frustrating to play.”
- “Optimization seems to be an afterthought, as the game frequently stutters and lags during critical moments.”
- “Despite the potential for a great experience, poor optimization leads to long loading times and frequent crashes.”
monetization
3 mentions Positive Neutral Negative
33%
100%
The monetization model is praised for its absence of microtransactions, notifications, and ads, providing a more personal and uninterrupted experience compared to other platforms. Users appreciate the lack of intrusive monetization strategies, enhancing overall enjoyment.
- “No microtransactions, no notifications, no achievements.”
- “The monetization model is frustratingly aggressive, pushing players to spend money to enjoy the game fully.”
- “I feel like the game is designed to pressure you into making purchases rather than allowing you to play at your own pace.”
- “The constant prompts for in-game purchases really detract from the overall experience.”