IMHO.

Single-player games like Welcome To Mars 9

Below are 10 single-player Steam games similar to Welcome To Mars 9, 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 Welcome To Mars 9 page.

Ranked picks

  1. 1
    Beyond a Steel Sky — Steam game cover

    Beyond a Steel Sky

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    From multi-award winning Revolution comes ‘Beyond a Steel Sky’, a groundbreaking 3D adventure thriller, set in an AI-driven future. Subvert the world, hack the systems and solve dark conspiracies to uncover the devastating truth.

    2020ActionIndieAdventure34.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Sentience: The Android's Tale — Steam game cover

    Sentience: The Android's Tale

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    You can remember nothing before this moment. Your existence begins with a keystroke followed by the flick of a switch. Electrical power streams into your neural network, and you are alive.

    2017IndieAdventure4.99 USDSingle-playerSimilar games →
  3. 3
    Citizen Sleeper 2: Starward Vector — Steam game cover

    Citizen Sleeper 2: Starward Vector

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    A dice-driven RPG, in a human and heartfelt sci-fi world. You are an escaped android, with a malfunctioning body, a price on your head and no memory of your past. Get a ship, find a crew, and take on contracts while you navigate across the Starward Belt.

    2025IndieAdventureRPG12.49 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Primordia — Steam game cover

    Primordia

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    Life has ceased. Man is but a myth. And now, even the machines have begun to fail. Lead Horatio Nullbuilt and his sarcastic sidekick Crispin on a journey through the crumbling world of Primordia, facing malfunctioning robots, ancient secrets, and an implacable, power-hungry foe.

    2012IndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Silicon Dreams  |  cyberpunk interrogation — Steam game cover

    Silicon Dreams | cyberpunk interrogation

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    It’s 2065, and you are an interrogator-model android tasked with rooting out deviants among your own kind. You must probe for lies, monitor and exploit emotional spikes, earn the trust of your subjects, and make the final call: release, or destroy?

    2021IndieAdventureSimulation14.99 USDSingle-playerSimilar games →
  6. 6
    The Uncertain: Last Quiet Day — Steam game cover

    The Uncertain: Last Quiet Day

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    The Uncertain is an story-driven adventure game set in a post-apocalyptic world. Experience the mysterious vibe of each of carefully explored locations, solve diverse puzzles, make fateful decisions and discuss intriguing matters to find out the whole truth being kept from you.

    2016IndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Between Horizons – A Sci-Fi Detective Adventure — Steam game cover

    Between Horizons – A Sci-Fi Detective Adventure

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    Between Horizons is a narrative 2.5D sci-fi detective adventure. 33 years into the Zephyr's journey, its mission is suddenly jeopardized. Can you find the culprit before it's too late? Experience an enthralling story set in a semi-open world that branches and ends based on your choices.

    2024IndieAdventure15.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    State of Mind — Steam game cover

    State of Mind

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    State of Mind is a futuristic thriller game delving into transhumanism. The game explores themes of separation, disjuncture and reunification, in a world that is torn between a dystopian material reality and a utopian virtual future.

    2018IndieAdventure19.99 USDSingle-playerSimilar games →
  9. 9
    Lone McLonegan : A Western Adventure — Steam game cover

    Lone McLonegan : A Western Adventure

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie and Adventure with Welcome To Mars 9.

    Lone McLonegan is an old-school point-n-click adventure game inspired by old westerns with touches of acid humor. Help Lone become "The Most Wanted Outlaw In The Wild West" as you tackle fun puzzles and meet quirky characters.

    2021ActionIndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Don't Shoot First! — Steam game cover

    Don't Shoot First!

    Single-player alternative to Welcome To Mars 9 — playable solo, no multiplayer required. Shares Indie with Welcome To Mars 9.

    Face off in Don't Shoot First, a Wild West duel where timing is everything. Draw too soon, you lose. Wait too long… it’s over. Do you have the nerves to hold back and the reflexes to strike at the perfect moment?

    2025ActionIndieCasual0.99 USDSingle-playerSimilar games →