IMHO.

Games like Cosmic Composer

If Cosmic Composer is your kind of game, the closest matches are Void Cargo: Equilibrium, Unbox the Room 2 and Starlight Explorers — 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 Cosmic Composer: Casual puzzle game on a cosmic scale. Build stars, planets and other cosmic objects. Evolve your cosmos using abilities of the stars from stellar winds to supernova.

2027CasualWindowsby Juhani Viitanen
Cosmic Composer — Steam game cover

Players who liked Cosmic Composer also play

Steam players who put hours into Cosmic Composer 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. Void Cargo: Equilibrium

    WHY THIS

    Top pick for Cosmic Composer fans by collaborative filtering across millions of Steam libraries.

    A first-person sci-fi cargo flight sim. Pilot a physics-driven lander, plan risky routes, manage fuel and heavy cargo, and save deliveries by repairing system failures mid-flight. Earn credits and upgrade your ship.

    2026ActionIndieAdventure9.74 USDSteam ↗
  2. Unbox the Room 2

    WHY THIS

    Second-strongest match for Cosmic Composer fans by collaborative filtering across millions of Steam libraries. Shares Casual with Cosmic Composer.

    The cozy unboxing and interior design experience returns — bigger, warmer, and more reactive. From homes to small businesses, each space responds to your choices and reflects its owner’s personality.

    2026IndieSimulationCasualSteam ↗
  3. Starlight Explorers

    WHY THIS

    Third-strongest match for Cosmic Composer fans by collaborative filtering across millions of Steam libraries. Shares Casual with Cosmic Composer.

    Master physics in one compelling physics puzzle after another. Aim the launcher and adjust its power, using your understanding of gravity wells to correctly plot their courses in a variety of challenges. Complete a light-hearted story and then test yourself in the endless Expeditions mode.

    2021IndieAdventureSimulation5.99 USDSteam ↗
  4. FlatPackers

    WHY THIS

    Ranked #4 for Cosmic Composer fans by collaborative filtering across millions of Steam libraries. Shares Casual with Cosmic Composer.

    CHAOTIC CO-OP BUILDING - Mistakes will be Made! Build flatpack furniture alone or with friends from simply a picture of the final piece so you must work out how everything fits together, which tools to use and with no object snapping, players need skill and practice to perfect their building skills.

    IndieSimulationCasualSteam ↗
  5. SpaceEngine

    WHY THIS

    Ranked #5 for Cosmic Composer fans by collaborative filtering across millions of Steam libraries. Shares Casual with Cosmic Composer.

    The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.

    2019IndieSimulationCasual20.99 USDSteam ↗
  6. Celestial Golf

    WHY THIS

    Ranked #6 for Cosmic Composer fans by collaborative filtering across millions of Steam libraries.

    It’s 2D golf on an astronomical scale. Bite-sized missions will teach you the techniques of real space flight, without having to worry about fuel or crew. Precisely plan orbital trajectories over the moons of Mars, through the rings of Saturn, and boldly go where no golf ball has gone before.

    2026SportsStrategyIndieSteam ↗
  7. Rover Mechanic Simulator

    WHY THIS

    Ranked #7 for Cosmic Composer fans by collaborative filtering across millions of Steam libraries.

    As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components.

    2020IndieSimulation11.99 USDDeck PlayableSteam ↗
  8. Lunar Impact

    WHY THIS

    Ranked #8 for Cosmic Composer fans by collaborative filtering across millions of Steam libraries.

    Go to the Moon to explore its harsh nature and mysterious anomalies. Build your own lunar base, craft equipment, extract valuable resources and make many discoveries. Overcome the challenges of extreme lunar conditions, an oxygen-free atmosphere and much more unknown...

    IndieAdventureSimulationSteam ↗

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.

    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. 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 ↗
  3. The Looker

    WHY THIS

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

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  4. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Cosmic Composer.

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

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  5. Travellin Cats in Paris

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Cosmic Composer.

    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 ↗
  6. Virtual Cottage

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Cosmic Composer.

    Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.

    2020IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  7. Magic Archery

    WHY THIS

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

    Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.

    2024IndieSimulationRPGFreeDeck PlayableSteam ↗
  8. Coloring Pixels

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Cosmic Composer.

    A relaxing coloring by numbers game. Enjoy completing a variety of images with differing themes, complexity, and sizes.

    2018IndieFree To PlayCasualFreeSteam ↗

Frequently asked about Cosmic Composer

What games are most similar to Cosmic Composer?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Cosmic Composer are Void Cargo: Equilibrium, Unbox the Room 2, Starlight Explorers.
Who developed Cosmic Composer?
Cosmic Composer was developed by Juhani Viitanen.

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 Cosmic Composer.

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