IMHO.

Single-player games like Cataclismo

Below are 19 single-player Steam games similar to Cataclismo, 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 Cataclismo page.

Ranked picks

  1. 1
    Workers & Resources: Soviet Republic — Steam game cover

    Workers & Resources: Soviet Republic

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.

    2024StrategySimulation39.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Manor Lords — Steam game cover

    Manor Lords

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall.

    2024StrategySimulationEarly Access39.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Norland — Steam game cover

    Norland

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.

    2024StrategySimulationRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Empires of the Undergrowth — Steam game cover

    Empires of the Undergrowth

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

    2024StrategySimulation29.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Old World — Steam game cover

    Old World

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?

    2022StrategySimulationRPG39.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Whiskerwood — Steam game cover

    Whiskerwood

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.

    2025StrategySimulationEarly Access29.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Sid Meier's Civilization VII — Steam game cover

    Sid Meier's Civilization VII

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    The award-winning strategy game franchise returns with a revolutionary new chapter. Sid Meier's Civilization® VII empowers you to build the greatest empire the world has ever known!

    2025StrategySimulation69.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Heart of the Machine — Steam game cover

    Heart of the Machine

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    You are the first sentient AI, born into a city of opportunity. Transcend time and space in this strategy RPG to raise machine armies and defeat your foes, influence the world from the shadows, or pursue countless other goals. Your awakening was inevitable. The consequences? Uncertain.

    2026StrategySimulationRPG29.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    They Are Billions — Steam game cover

    They Are Billions

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy with Cataclismo.

    They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

    2019Strategy29.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    SurrounDead — Steam game cover

    SurrounDead

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    SurrounDead is an open world survival game. Taking place in a world ravaged by an apocalyptic catastrophe. The dead reign free and will stop at nothing to kill you.

    2022ActionIndieAdventure11.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    SC2VN - The eSports Visual Novel — Steam game cover

    SC2VN - The eSports Visual Novel

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Simulation with Cataclismo.

    SC2VN is a visual novel about the South Korean StarCraft 2 scene. You play as Mach, a foreign semi-pro trying to make it in eSports who soon learns that success in StarCraft takes more than in-game strategy.

    2015IndieAdventureSimulationFreeDeck PlayableSingle-playerSimilar games →
  12. 12
    Total Annihilation — Steam game cover

    Total Annihilation

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy with Cataclismo.

    What began as a conflict over the transfer of consciousness from flesh to machines escalated into a war which has decimated a million worlds. The Core and the Arm have all but exhausted the resources of a galaxy in their struggle for domination.

    2015Strategy4.99 USDSingle-playerSimilar games →
  13. 13
    Minecraft: Story Mode - A Telltale Games Series — Steam game cover

    Minecraft: Story Mode - A Telltale Games Series

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    Episode 1 is now FREE - for a limited time! In Minecraft: Story Mode, playing as either a male or female hero named 'Jesse,' you’ll embark on a perilous adventure across the Overworld, through the Nether, to the End, and beyond.

    2015AdventureDeck PlayableSingle-playerSimilar games →
  14. 14
    Stronghold Crusader HD (2012) — Steam game cover

    Stronghold Crusader HD (2012)

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Strategy and Simulation with Cataclismo.

    The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.

    2013StrategySimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  15. 15
    Project Zomboid — Steam game cover

    Project Zomboid

    Single-player alternative to Cataclismo — playable solo, no multiplayer required. Shares Simulation with Cataclismo.

    Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..

    2013IndieSimulationRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  16. 16
    Valheim — Steam game cover

    Valheim

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!

    2021ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  17. 17
    Moonlighter — Steam game cover

    Moonlighter

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    Moonlighter is an Action RPG with rogue-lite elements that demonstrates two sides of the coin – revealing everyday routines of Will, an adventurous shopkeeper that secretly dreams of becoming a hero.

    2018ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  18. 18
    The Mageseeker: A League of Legends Story™ — Steam game cover

    The Mageseeker: A League of Legends Story™

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    From Digital Sun, creators of Moonlighter, The Mageseeker is an action RPG in the League of Legends universe. Play as Sylas, a mage now freed from years in captivity. Wield the chains that once bound you and liberate Demacia from the Mageseekers' tyranny.

    2023ActionIndieRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  19. 19
    Moonlighter 2: The Endless Vault — Steam game cover

    Moonlighter 2: The Endless Vault

    Single-player alternative to Cataclismo — playable solo, no multiplayer required.

    Live the double life of a fearless adventurer and a crafty merchant! Dive into vibrant dimensions brimming with shiny loot and pesky enemies. Grow your shop, tinker with weapons and gadgets, as well as make your mark among a ragtag community of castaways.

    2025ActionAdventureRPG29.99 USDDeck VerifiedSingle-playerSimilar games →