IMHO.

Games like Complex SKY

If Complex SKY is your kind of game, the closest matches are Copacetic, Factory Town 2: Paradise and Biofactory — 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 Complex SKY: COMPLEX SKY is a futuristic city building game with a unique architecture system - build the city both ways, up and down! The world is devastated by pollution, and it’s up to you to create a fully self-sustainable city in the skies, and populate it with human settlers.

StrategySimulationEarly AccessWindowsby Momosundeass
Complex SKY — Steam game cover

Players who liked Complex SKY also play

Steam players who put hours into Complex SKY 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. Copacetic

    WHY THIS

    Top pick for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    The 3D Pipes screensaver, but a resource management game, inside of a cube, about genocide. Place factories and modules around the walls of your mind, avoiding tangles as you wire them all together. Travel across the galaxy harvesting all sentient life. Space is limited, and the only enemy is you.

    StrategySimulationCasualSteam ↗
  2. Factory Town 2: Paradise

    WHY THIS

    Second-strongest match for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    A combination Town Builder + Factory Sim where you build a tropical island village, produce tons of goods, automate everything, and feed a giant sentient volcano in exchange for super powers!

    2026StrategyIndieSimulationSteam ↗
  3. Biofactory

    WHY THIS

    Third-strongest match for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    Build your living factory using organs and fleshy biomachines. Combine your pulsating machines to automate and scale up production. Mine, harvest, produce and assemble weird materials in a grimdark biopunk setting. You are an evolving hive-mind brain, driven by one instinct: The factory must grow.

    2026StrategySimulationSteam ↗
  4. Modulus: Factory Automation

    WHY THIS

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

    Build, automate, & optimize production lines across sky islands with real spatial constraints. Every production line is an open-ended puzzle: which operators to use, how to route your belts and how to fit your factory into the landscape. Your solutions, like your factories, are uniquely your own.

    2026Simulation24.99 USDDeck PlayableSteam ↗
  5. RAILGRADE

    WHY THIS

    Ranked #5 for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    RAILGRADE is the train RTS game! Construct dense vertical railroads, build cities, construct vast factory chains with train automation! Restore an off world colony's economy all in the intense story driven campaign or relaxing sandbox mode!

    2023StrategySimulation29.99 USDDeck VerifiedSteam ↗
  6. Hammerting

    WHY THIS

    Ranked #6 for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    Manage a Dwarven mining colony in the unexplored mountains of Mara. As conflict rages in the Overworld, you will need to craft, explore and fight as you provide the allies of your choice with the finest weapons and gear to assist them in the battle for glory.

    2021StrategyIndieAdventure24.99 USDSteam ↗
  7. InfraSpace

    WHY THIS

    Ranked #7 for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.

    2023StrategyIndieSimulation24.99 USDDeck PlayableSteam ↗
  8. Anno 2205™

    WHY THIS

    Ranked #8 for Complex SKY fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Simulation with Complex SKY.

    In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.

    2015StrategySimulation39.99 USDDeck PlayableSteam ↗

Free alternatives

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

  1. Magic Archery

    WHY THIS

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

    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 ↗
  2. The Lab

    WHY THIS

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

    Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

    2016Free To PlayFreeSteam ↗
  3. Landfall Archives

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Complex SKY.

    Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

    2023ActionStrategyIndieFreeSteam ↗
  4. SuchArt: Creative Space

    WHY THIS

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

    Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!

    2021ActionIndieAdventureFreeDeck PlayableSteam ↗
  5. Control, I'm Not Coming Back

    WHY THIS

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

    Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.

    2026IndieAdventureFree To PlayFreeSteam ↗
  6. Outpath: First Journey

    WHY THIS

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

    Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!

    2022IndieAdventureCasualFreeDeck PlayableSteam ↗
  7. The Riftbreaker: Prologue

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Complex SKY.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableSteam ↗
  8. Jigsaw Puzzle Dreams

    WHY THIS

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

    Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!

    2021IndieFree To PlayCasualFreeDeck PlayableSteam ↗

Frequently asked about Complex SKY

What games are most similar to Complex SKY?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Complex SKY are Copacetic, Factory Town 2: Paradise, Biofactory.
Who developed Complex SKY?
Complex SKY was developed by Momosundeass and published by CRITICAL REFLEX.

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 Complex SKY.

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

16 Games Like Complex SKY — Ranked for 2026 · imho.run