IMHO.

Single-player games like Citizens: On Mars

Below are 14 single-player Steam games similar to Citizens: On Mars, 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 Citizens: On Mars page.

Ranked picks

  1. 1
    Surviving Mars — Steam game cover

    Surviving Mars

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

    2018StrategySimulationSingle-playerSimilar games →
  2. 2
    Stellar Settlers: Space Base Builder — Steam game cover

    Stellar Settlers: Space Base Builder

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.

    2025StrategyIndieSimulation4.79 USDSingle-playerSimilar games →
  3. 3
    Prison Architect — Steam game cover

    Prison Architect

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.

    2015StrategyIndieSimulation7.49 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Foundation — Steam game cover

    Foundation

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.

    2025StrategyIndieSimulation34.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Land of the Vikings — Steam game cover

    Land of the Vikings

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Land of the Vikings is a survival colony sim game. Build and lead your village, and expand it into a thriving city. A wise Jarl must manage resources, survive harsh conditions, and guide their fellow Vikings to work together through social conflict. Skál!

    2023Strategy25.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Endzone - A World Apart — Steam game cover

    Endzone - A World Apart

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Endzone is a post-apocalyptic survival city builder, where you start a new civilization with a group of people after an ecological disaster. Build them a new home and ensure their survival in a shattered world, threatened by constant radiation, toxic rain, sandstorms and droughts.

    2021StrategyIndieSimulation24.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Rebuild 3: Gangs of Deadsville — Steam game cover

    Rebuild 3: Gangs of Deadsville

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Rebuild a ruined city in this post-apocalyptic mix of strategy and simulation. Manage survivors, scavenge for food and supplies, deal with rival gangs, illness, interpersonal strife and zombie attacks.

    2015StrategyIndieSimulation14.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Stronghold: Warlords — Steam game cover

    Stronghold: Warlords

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!

    2021StrategySimulation39.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Warlords Under Siege — Steam game cover

    Warlords Under Siege

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Warlords Under Siege is a mix of RTS and Roguelike genre, where you build a small city and defend it against continuous waves of enemies. Improve your assortment of weapons with each playthrough, unlocking new possibilities to beat the ever-increasing threat.

    2025StrategySimulation5.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    Citizens: Far Lands — Steam game cover

    Citizens: Far Lands

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Citizens is a blend between turn based city builder and a puzzler for strategy masterminds. Build a thriving settlement, extract and process resources and manage your population by catering to their needs, thus allowing you to build bigger and better!

    2022StrategySimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Balling Up — Steam game cover

    Balling Up

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required.

    Immerse yourself in a colorful journey through universes that does not forgive any mistakes. Jump well in the ball parkour game, where falling can cost you everything!

    2024ActionSportsIndie3.99 USDSingle-playerSimilar games →
  12. 12
    Warlords Battle Simulator — Steam game cover

    Warlords Battle Simulator

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required. Shares Strategy with Citizens: On Mars.

    Test your mettle as a commander in a Tactical Roguelike Auto Battler where positioning and unit combinations are key! Write your own story in Roguelike mode, try out over 100 unique challenges or create interesting battles with the Sandbox tool!

    2024StrategySimulation9.99 USDSingle-playerSimilar games →
  13. 13
    The Moon 2044 — Steam game cover

    The Moon 2044

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required.

    Explore a secret NCIS facility and discover its dark secret. Take on the role of the XV-11 unit and face hundreds of enemies in a dark sci-fi shooter inspired by old school hits!

    2024ActionAdventureSimulation5.99 USDSingle-playerSimilar games →
  14. 14
    Androsystem Idle — Steam game cover

    Androsystem Idle

    Single-player alternative to Citizens: On Mars — playable solo, no multiplayer required.

    Produce Androids and create a Fleet that will help you conquer new planets. Mine valuable minerals that will further increase your production capacity.

    2024IndieSimulationCasual1.99 USDDeck PlayableSingle-playerSimilar games →