IMHO.

Games like Project Sol

If Project Sol is your kind of game, the closest matches are VALTERION: THE LOST EARTH, Empires of a Tiny Universe and Space Alliance: Frontier — 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 Project Sol: Project Sol is a Sci-Fi colony sim set in the future when you civilization is just beginning to reach for the stars. Take control of your Empire, build massive orbital satellites, defend from roving pirates, and conquer the galaxy!

StrategyEarly AccessWindows · Linuxby Quack Reactions
Project Sol — Steam game cover

Players who liked Project Sol also play

Steam players who put hours into Project Sol 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. VALTERION: THE LOST EARTH

    WHY THIS

    Top pick for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Project Sol.

    VALTERION: THE LOST EARTH is a sci-fi colony-building strategy game. Lead 50 survivors on Elyra, build a thriving colony, develop its economy and research, return to the stars, and search for the lost path back to Earth.

    2027StrategyIndieSimulationSteam ↗
  2. Empires of a Tiny Universe

    WHY THIS

    Second-strongest match for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Project Sol.

    Empires of a Tiny Universe is a relaxed single-player RTS where you build and expand your empire across space. Manage planetary infrastructure, develop new technologies for your fleet, and conquer the galaxy - all from a clear, minimalist perspective.

    2026StrategyIndieSteam ↗
  3. Space Alliance: Frontier

    WHY THIS

    Third-strongest match for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Project Sol.

    Get ready to protect the entire solar system from an unprecedented threat - the D'Ahari, a race of insect-like aliens. Control an entire fleet of spaceships, trade with other races of an Alliance, and develop your own space station.

    2025StrategyIndieRPG6.99 USDSteam ↗
  4. Beyond Astra

    WHY THIS

    Ranked #4 for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Project Sol.

    Lead your civilization in a galaxy brimming with life and intrigue. Seamlessly explore and expand across uncharted worlds, from their surfaces to the stars. Forge your destiny in this sci-fi 4X offering a unique blend of grand strategy, planetary city-building, and RTS combat.

    2027StrategyIndieSimulationSteam ↗
  5. The Diner at the End of the Galaxy

    WHY THIS

    Ranked #5 for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Early Access with Project Sol.

    Influence the fate of the Nusa star system through your clientele’s stomachs. Grow exotic ingredients, create a menu that appeals to intergalactic palates, and discover treasures in the outer worlds. Come on in! The Diner is always open for business.

    2025StrategySimulationEarly Access9.99 USDDeck PlayableSteam ↗
  6. Calyx

    WHY THIS

    Ranked #6 for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Early Access with Project Sol.

    A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?

    2026StrategyEarly Access24.99 USDDeck PlayableSteam ↗
  7. Reshaping Mars

    WHY THIS

    Ranked #7 for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Project Sol.

    「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.

    2023StrategyIndieSimulation9.99 USDDeck PlayableSteam ↗
  8. Space Drilling Station

    WHY THIS

    Ranked #8 for Project Sol fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Early Access with Project Sol.

    In Space Drilling Station, manage a drilling station on a distant planet. Build a multi-level vertical structure to produce and manage your resources and staff, in order to dominate the competition!

    2026StrategySimulationEarly Access19.99 USDDeck PlayableSteam ↗

Free alternatives

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

  1. 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 PlayFreeDeck VerifiedSteam ↗
  2. 93, Kuindzhi

    WHY THIS

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

    Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.

    2026IndieAdventureFree To PlayFreeSteam ↗
  3. Landfall Archives

    WHY THIS

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

    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.

    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. Aircar

    WHY THIS

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

    A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.

    2019IndieFree To PlayCasualFreeSteam ↗
  6. Crime Scene Cleaner: Prologue

    WHY THIS

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

    When there’s a call, you are the man to clean up after your client’s dirty job. Siding with the mafia is a dangerous game, but they pay well, and you need money, right? So take your mop and better remove those bloodstains quickly before the police come.

    2024ActionSimulationFreeSteam ↗
  7. 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 ↗
  8. South Scrimshaw, Part One

    WHY THIS

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

    South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.

    2023IndieCasualFreeDeck PlayableSteam ↗

Frequently asked about Project Sol

What games are most similar to Project Sol?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Project Sol are VALTERION: THE LOST EARTH, Empires of a Tiny Universe, Space Alliance: Frontier.
Who developed Project Sol?
Project Sol was developed by Quack Reactions.

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 Project Sol.

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

16 Games Like Project Sol — Ranked for 2026 · imho.run