IMHO.

Games like Moon Fishies

If Moon Fishies is your kind of game, the closest matches are Joyquarium, Megaquarium and Watch Your Plastic Duck — picked from the ranked list below. 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 Moon Fishies: Moonfishies is relaxing desktop fish simulator. Customize your dream aquarium, catch new fish and breed unique hybrids!

IndieSimulationCasualEarly AccessWindowsby AnionCat
Moon Fishies — Steam game cover

Players who liked Moon Fishies also play

Steam players who put hours into Moon Fishies 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. Joyquarium

    WHY THIS

    Top pick for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    Joyquarium is a relaxing casual fish-raising game. Buy various cute fry and sell them at a high price after they grow up. With the money you earn, you can purchase aquatic plants, driftwood, scenery stone, etc. to decorate your tank (you can freely adjust the color, size, and position).

    2025IndieSimulationCasual1.79 USDDeck PlayableSteam ↗
  2. Megaquarium

    WHY THIS

    Second-strongest match for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    The public aquarium simulator. Design your displays, look after your fish, manage your staff and keep your guests happy! It's all in a day's work as the curator of your very own Megaquarium.

    2018StrategyIndieSimulation24.99 USDDeck PlayableSteam ↗
  3. Watch Your Plastic Duck

    WHY THIS

    Third-strongest match for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    Small rubber ducks calmly swim in the pool and you can watch them to relaxing music. What can go wrong?

    2022IndieSimulationCasual1.99 USDSteam ↗
  4. Chillquarium

    WHY THIS

    Ranked #4 for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Simulation and Casual with Moon Fishies.

    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 ↗
  5. FISHERY

    WHY THIS

    Ranked #5 for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    Fishery is a stylized aquarium simulation game. Harness your creativity to build and maintain beautiful aquatic habitats. Then relax and watch your beautiful fish enjoy their home.

    2019StrategyIndieSimulation19.99 USDDeck PlayableSteam ↗
  6. SUPER BUILD

    WHY THIS

    Ranked #6 for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers. Just stress-free building, exploration, and good vibes.

    2019IndieSimulationCasual14.99 USDDeck PlayableSteam ↗
  7. IncrediMarble

    WHY THIS

    Ranked #7 for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    Build amazing marble contraptions with IncrediMarble! Enjoy idle incremental tycoon sandbox simulation gameplay with the best physics Unity can offer. It's like that old toy you had as a kid!

    2021IndieSimulationCasual6.99 USDSteam ↗
  8. Cast n Chill

    WHY THIS

    Ranked #8 for Moon Fishies fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Moon Fishies.

    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 ↗

Free alternatives

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

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Moon Fishies.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Moon Fishies.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  3. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Moon Fishies.

    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 ↗
  4. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Moon Fishies.

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

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

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Moon Fishies.

    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 ↗
  6. Sheepy: A Short Adventure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Moon Fishies.

    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 ↗
  7. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Moon Fishies.

    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 ↗
  8. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Moon Fishies.

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

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about Moon Fishies

What games are most similar to Moon Fishies?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Moon Fishies are Joyquarium, Megaquarium, Watch Your Plastic Duck.
Who developed Moon Fishies?
Moon Fishies was developed by AnionCat and published by AnionCat Studio.

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 Moon Fishies.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.