IMHO.

Single-player games like Thveit

Below are 8 single-player Steam games similar to Thveit, 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 Thveit page.

Ranked picks

  1. 1
    CastleOn — Steam game cover

    CastleOn

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

    Build a castle! Grow economy, recruit troops from Europe and the Holy Land, man the walls and towers! Place traps and defeat attackers with arrows, wood and stone, fire, disease and cold steel! Survive the Third Crusade and conquer enemy lands in Castleon!

    2026StrategySimulationSingle-playerSimilar games →
  2. 2
    Mars Attracts — Steam game cover

    Mars Attracts

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

    Mars Attracts is a park management sim set in the iconic universe of Mars Attacks™. Play as the devious Martians as you construct detailed enclosures, manage staff, and most importantly - abduct and experiment on humans for the entertainment of your Martian guests!

    2025ActionStrategyAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Whiskerwood — Steam game cover

    Whiskerwood

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

    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 →
  4. 4
    Deisim — Steam game cover

    Deisim

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

    Live the experience of being a powerful god and create the world to see the growth of mankind.

    2022StrategyIndieSimulation14.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Fata Deum - The God Sim — Steam game cover

    Fata Deum - The God Sim

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

    Inspired by the god games of old, Fata Deum lets you mold settlements and townsfolk in your image. Will you raise the settlements to splendor, or spur them on to violent debauchery and demons? Watch as a living world grows under your whims.

    2025StrategySimulationRPG29.99 USDSingle-playerSimilar games →
  6. 6
    Sid Meier's Civilization VII — Steam game cover

    Sid Meier's Civilization VII

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

    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 →
  7. 7
    Nova Roma — Steam game cover

    Nova Roma

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

    The glory of Rome is at your fingertips in this city-building game where you must appease the gods, enact laws, and develop complex supply chains to meet the needs of your citizens.

    2026StrategySimulationEarly Access29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Steel Artery: Train City Builder — Steam game cover

    Steel Artery: Train City Builder

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

    Build a living city on rails in this steampunk fantasy train-city builder. Manage multiracial colonies with thousands of autonomous citizens, balance their needs, manage the economy, and create logistics as you explore distant regions to ensure the prosperity of your Empire.

    2026StrategyIndieSimulation13.49 USDSingle-playerSimilar games →