IMHO.

Single-player games like Exo One

Below are 16 single-player Steam games similar to Exo One, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Exo One page.

Ranked picks

  1. 1
    Voyager 2 — Steam game cover

    Voyager 2

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Simulation with Exo One.

    Launch the Voyager space probe to the furthest depths of the Solar System! Use gravity to slingshot around planets and scan, orbit, or land on targets to earn stunning replays of your accomplishments.

    2023StrategyIndieSimulation6.99 USDSingle-playerSimilar games →
  2. 2
    SpaceEngine — Steam game cover

    SpaceEngine

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Simulation with Exo One.

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

    2019IndieSimulationCasual20.99 USDSingle-playerSimilar games →
  3. 3
    Exo One: Prologue — Steam game cover

    Exo One: Prologue

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    A strange signal... an alien craft... an interplanetary, gravity-defying journey through space and time. This is the prologue for Exo One.

    2020IndieAdventureSimulationFreeSingle-playerSimilar games →
  4. 4
    ORBITAL — Steam game cover

    ORBITAL

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Adventure and Simulation with Exo One.

    A space adventure where you solve the mystery of your past, building a thriving civilization across a distant solar system. Fly your rocket as a commander, grow your colonies and build planet upgrades to conquer this unknown space.

    2026AdventureSimulation8.49 USDSingle-playerSimilar games →
  5. 5
    Starlight Brigade — Steam game cover

    Starlight Brigade

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Adventure and Simulation with Exo One.

    Starlight Brigade is a realistic space action-adventure game with a precise combat system and full 6DOF controls. You command the Wayfarer, an aging light cruiser centuries past her time. Plot missile salvos, hunt down your enemy, design munitions, manage your crew, and send engineers to fix damage.

    2026ActionAdventureSimulationSingle-playerSimilar games →
  6. 6
    Expedition Astra — Steam game cover

    Expedition Astra

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    Old machines guard silent asteroid sites across the outer solar system. Pilot a 6DoF spacecraft, fight around the rock, dock with old vessels, and touch the asteroid to extract rare materials.

    ActionIndieAdventureSingle-playerSimilar games →
  7. 7
    A Million Lightyears Beyond — Steam game cover

    A Million Lightyears Beyond

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    Hunted to the edge of extinction humanity goes through a mysterious ancient gate. Will you go beyond the mysterious gate to discover the secrets of our past and the hope for our future, as we begin our new life in a far off galaxy?

    ActionIndieAdventureSingle-playerSimilar games →
  8. 8
    Starship Fighters: Space Combat Simulator — Steam game cover

    Starship Fighters: Space Combat Simulator

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    Pilot your starship in Starship Fighters, a realistic space combat simulator. Engage in intense battles, explore vast galaxies, and unleash destruction with an arsenal of powerful weapons in a universe teeming with enemies!

    2025ActionIndieAdventure24.99 USDSingle-playerSimilar games →
  9. 9
    The Witness — Steam game cover

    The Witness

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    You wake up, alone, on a strange island full of puzzles that will challenge and surprise you.

    2016IndieAdventure39.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    The Stanley Parable — Steam game cover

    The Stanley Parable

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Adventure with Exo One.

    The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story. You will have a choice, you will have no choice. The game will end, the game will never end.

    2013IndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Space Engineers — Steam game cover

    Space Engineers

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Simulation with Exo One.

    Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.

    2019ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  12. 12
    No Man's Sky — Steam game cover

    No Man's Sky

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Adventure with Exo One.

    No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

    2016ActionAdventure59.99 USDDeck VerifiedSingle-playerSimilar games →
  13. 13
    Superflight — Steam game cover

    Superflight

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Casual with Exo One.

    Superflight is an intense, easy to learn wingsuit game with an infinite number of beautiful procedurally generated maps. A great game to relax for half an hour and chase your latest highscore!

    2017ActionSportsIndie2.99 USDDeck PlayableSingle-playerSimilar games →
  14. 14
    Outer Wilds — Steam game cover

    Outer Wilds

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Adventure with Exo One.

    Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.

    2020ActionAdventure24.99 USDDeck VerifiedSingle-playerSimilar games →
  15. 15
    Marble Madness — Steam game cover

    Marble Madness

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Indie and Casual with Exo One.

    Marble Madness is a tense and exciting pinball card building game. Using pinball collision as the main gameplay, supplemented by card construction, each game has a different experience, so experience the exhilaration of each collision.

    2024StrategyIndieCasual1.99 USDSingle-playerSimilar games →
  16. 16
    Tiny Kings — Steam game cover

    Tiny Kings

    Single-player alternative to Exo One — playable solo, no multiplayer required. Shares Simulation and Casual with Exo One.

    Tiny Kings is the whimsical medieval base builder where your dreams of building and managing a pint-sized kingdom come true! Unleash your inner ruler and build your kingdom, manage your citizens' tasks, and dominate the siege to become the ultimate ruler.

    2025StrategySimulationCasual4.99 USDSingle-playerSimilar games →