IMHO.

Games like Zen Aquarium

If Zen Aquarium is your kind of game, the closest matches are Chillquarium, Cast n Chill and Desktank — picked from the ranked list below. Reviewers single out its customizable background music selection, atmospheric and chill. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Zen Aquarium: Immerse yourself in the ultimate relaxing aquarium experience. Watch fish glide gracefully through a serene, ever-changing tank—no setup, no stress, just pure tranquility. Enjoy soothing visuals and ambient ASMR sounds as your aquarium comes to life effortlessly. Your peaceful escape awaits!

2025Simulation4.99 USDDeck PlayableWindows · macOSby Astro Cat
Zen Aquarium — Steam game cover
Players highlight
Curate your own relaxing soundscapesCustomizable background music selectionGuilt free virtual aquarium experience for anxiety reliefAtmosphericChillCozy

Players who liked Zen Aquarium also play

Steam players who put hours into Zen Aquarium also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Chillquarium

    WHY THIS

    Shares idle progression, casual and a chill mood with Zen Aquarium.

    Top pick for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!

    2023SimulationCasual5.99 USDDeck PlayableSteam ↗
  2. Cast n Chill

    WHY THIS

    Shares idle progression, casual and a peaceful mood with Zen Aquarium.

    Second-strongest match for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    Cast n Chill is a relaxing fishing game where you explore serene lakes, rivers, and oceans. Catch rare fish, upgrade your gear and reel in legendary catches - all with your loyal companion by your side.

    2025SportsIndieSimulation14.99 USDDeck VerifiedSteam ↗
  3. Desktank

    WHY THIS

    Third-strongest match for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    A cozy idle aquarium that lives on top of your screen. Watch fish swim, grow, and interact while you work or relax. Desktank turns your desktop into a peaceful underwater world — float it in the corner or let it take over the whole screen. Just sit back and enjoy the calm.

    2025IndieSimulationFree To PlayFreeSteam ↗
  4. Chill & Reel

    WHY THIS

    Shares idle progression, casual and a peaceful mood with Zen Aquarium.

    Ranked #4 for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    A cozy idle fishing game where you play as an adorable alligator angler. Designed to run in the corner of your screen, it's the perfect companion for work or study—featuring rich animations that make every moment feel like watching a charming short film.

    2026IndieSimulationCasual7.99 USDDeck PlayableSteam ↗
  5. A Good Day Fishing

    WHY THIS

    Ranked #5 for Zen Aquarium fans by collaborative filtering across millions of Steam libraries.

    A Good Day Fishing is a gamified focus tool where you catch fish while completing real-life tasks. Reel in and record new species, decorate your favorite cozy fishing spot, and customize your soundscape to create a custom vibe to help you relax and boost concentration.

    2026IndieCasualSteam ↗
  6. Lofi Lagoon

    WHY THIS

    Ranked #6 for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    Every tool for deep work in one app — pomodoro, to‑dos, calendar, habits, notes, subscription tracking, and a lightweight spreadsheet you'll actually use — wrapped in lo‑fi music and a living sea. Pop any tool onto a second monitor; export to CSV anytime. Buy once, no subscription, works offline.

    2026IndieSimulationCasual4.99 USDSteam ↗
  7. Fish Companions

    WHY THIS

    Ranked #7 for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    Fish Companions is a relaxing idle game that brings colorful life to your desktop. Adopt your own digital fish to keep you company. Raise your companions, unlock aquariums, explore new oceans filled with more fish, and collect them all! Hang out with your friends to enjoy even more companionship!

    2026IndieSimulationCasual3.99 USDSteam ↗
  8. Tiny Aquarium: Social Fishkeeping

    WHY THIS

    Shares idle progression, casual and an atmospheric mood with Zen Aquarium.

    Ranked #8 for Zen Aquarium fans by collaborative filtering across millions of Steam libraries. Shares Simulation with Zen Aquarium.

    A happy aquarium that lives at the bottom of your screen! Tiny Aquarium is a social idle simulator that keeps growing, even when offline. Hatch, sell fish, decorate, go fishin’, and visit your friends’ aquariums with bite-sized daily sessions.

    2025IndieSimulationMassively Multiplayer7.49 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Zen Aquarium at current Steam store prices.

  1. The Test

    WHY THIS

    Priced ~60% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    You will answer a series of questions that will reveal truths from deep within. These questions may make you uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and if you do, are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  2. Placid Plastic Duck Simulator

    WHY THIS

    Shares a chill mood with Zen Aquarium.

    Priced ~60% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    The ultimate high-tech rubber duck simulation, Placid Plastic Duck brings you dangerous levels of relaxation. With chill music, dreamy 3D graphics, and many different happy ducks, your only priority is to float around. Zero Ducks given.

    2022SimulationCasual1.99 USDDeck VerifiedSteam ↗
  3. shapez

    WHY THIS

    Priced ~80% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!

    2020StrategyIndieSimulation0.99 USDDeck PlayableSteam ↗
  4. The Test: Hypothesis Rising

    WHY THIS

    Priced ~60% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    The second chapter in The Test trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover how your life can change drastically with just a few, slight modifications. ...But are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  5. The Test: Final Revelation

    WHY THIS

    Priced ~60% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    The third chapter in The Test Trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover who you really are as a person. The Final Revelation is upon us... but are you sure you TRULY want the answers you seek?

    2020SimulationRPG1.99 USDDeck VerifiedSteam ↗
  6. Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad

    WHY THIS

    Priced ~80% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    "Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad?" is a fast paced shower-simulation where you shower with your 8-bit dad.It's good, clean fun!

    2015ActionIndieSimulation0.99 USDDeck VerifiedSteam ↗
  7. Kill It With Fire

    WHY THIS

    Priced ~48% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    Kill It With Fire is a first-person action game about hunting spiders and causing collateral damage.

    2020ActionIndieSimulation2.59 USDDeck VerifiedSteam ↗
  8. Dictators:No Peace Countryballs

    WHY THIS

    Priced ~80% under Zen Aquarium on Steam right now. Shares Simulation with Zen Aquarium.

    Dictators : No Peace Countryballs is a war simulation and dictator game. This is a fun,simple and some say a funny countryballs game. If you like simulation games, you will love playing Dictators : No Peace. Play as a dictator of your favourite country and colonize the world.

    2020StrategyIndieSimulation0.99 USDSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Zen Aquarium.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  2. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Zen Aquarium.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  3. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  4. Sheepy: A Short Adventure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  5. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.

    2020IndieFree To PlayCasualFreeSteam ↗
  6. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Zen Aquarium.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  7. NGU IDLE

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Simulation with Zen Aquarium.

    NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!

    2019IndieAdventureSimulationFreeDeck PlayableSteam ↗
  8. Travellin Cats in Paris

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Find 100 cats hidden in Paris, France in this cute hand-drawn hidden object game by Travellin Cats - the original viral hidden cat game creator!

    2023IndieFree To PlayCasualFreeDeck VerifiedSteam ↗

Frequently asked about Zen Aquarium

Does Zen Aquarium run on Steam Deck?
Zen Aquarium is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Zen Aquarium cost?
Zen Aquarium is listed on Steam at 4.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Zen Aquarium?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Zen Aquarium are Chillquarium, Cast n Chill, Desktank.
Who developed Zen Aquarium?
Zen Aquarium was developed by Astro Cat.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Zen Aquarium.

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