IMHO.

Single-player games like Citizens of Space

Below are 11 single-player Steam games similar to Citizens of Space, 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 of Space page.

Ranked picks

  1. 1
    Doom & Destiny — Steam game cover

    Doom & Destiny

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    Be ready for the nerdiest adventure of your life! Journey with four everyday friends into this turn based hilarious jrpg filled with parodies and cameos! Explore a huge fantasy world full of secrets, monsters, dungeons and preposterous villains! Nerds are storming fantasy and it's awesome!

    2015IndieRPG2.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Citizens of Earth — Steam game cover

    Citizens of Earth

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    As the newly elected Vice President of the World, it's your job to save the Earth by recruiting friends, family, and the local townsfolk! ...A true politician would never get his own hands dirty, after all!

    2015RPGDeck PlayableSingle-playerSimilar games →
  3. 3
    Like a Dragon: Infinite Wealth — Steam game cover

    Like a Dragon: Infinite Wealth

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    Two larger-than-life heroes, Ichiban Kasuga and Kazuma Kiryu are brought together by the hand of fate, or perhaps something more sinister… Live it up in Japan and explore all that Hawaii has to offer in an RPG adventure so big it spans the Pacific.

    2024ActionAdventureRPG69.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    West of Loathing — Steam game cover

    West of Loathing

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    West of Loathing — a slapstick comedy stick-figure wild west adventure role-playing game.

    2017IndieAdventureRPG10.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Yakuza: Like a Dragon — Steam game cover

    Yakuza: Like a Dragon

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    Become Ichiban Kasuga, a low-ranking yakuza grunt left on the brink of death by the man he trusted most. Take up your legendary bat and get ready to crack some underworld skulls in dynamic RPG combat set against the backdrop of modern-day Japan.

    2020ActionAdventureRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Bug Fables: The Everlasting Sapling — Steam game cover

    Bug Fables: The Everlasting Sapling

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    Follow Vi, Kabbu, and Leif as they uncover the secrets of the Land of Bugaria! Explore and combine your team's abilities to solve puzzles, defeat powerful enemies and find ancient treasures!

    2019ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Pit People® — Steam game cover

    Pit People®

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    In this fast-paced, turn-based, co-op adventure you'll quest and explore, find awesome loot, customize your fighters, and recruit strange species! Come master your destiny in this strategic game of positioning.

    2018ActionStrategyIndie19.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Hyperdimension Neptunia Re;Birth1 — Steam game cover

    Hyperdimension Neptunia Re;Birth1

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required. Shares RPG with Citizens of Space.

    Packed with fast-paced, turn-based RPG action, fourth-wall-breaking, trope-demolishing dialogue, and more item, weapon, and costume customization than you can shake a Lvl. 1 Stick at, Gamindustri is a world set on turning the concept of the JRPG on its head!

    2015StrategyRPG14.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Waveform — Steam game cover

    Waveform

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required.

    Navigate the beauty and hazards of the solar system while riding a wave of light through 100+ levels in this innovative action-puzzle game!

    2012StrategyIndieAdventure1.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    Toy Soldiers: HD — Steam game cover

    Toy Soldiers: HD

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required.

    Command antique WWI Toy Soldiers in the trench-filled battlefields of Europe. Deploy an exciting arsenal of guns, artillery, flamethrowers, tanks and planes to defend your WWI toy dioramas.  Take direct control of individual units or command the entire battlefield from above.

    2021ActionStrategySimulation29.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Citizens Unite!: Earth x Space — Steam game cover

    Citizens Unite!: Earth x Space

    Single-player alternative to Citizens of Space — playable solo, no multiplayer required.

    Unite the Citizens to save the timeline in a hilarious action-packed adventure!

    2021StrategyIndieAdventure11.99 USDSingle-playerSimilar games →