IMHO.

Single-player games like Castaway: Lost Horizon

Below are 8 single-player Steam games similar to Castaway: Lost Horizon, 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 Castaway: Lost Horizon page.

Ranked picks

  1. 1
    A Cut Above: Mow & Grow — Steam game cover

    A Cut Above: Mow & Grow

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required. Shares Casual with Castaway: Lost Horizon.

    Run your own lawn care business in this first-person simulation game. Mow grass, manage fuel, upgrade equipment, hire employees, and more. Start at the bottom and work your way to a mega business

    2027StrategySimulationCasualSingle-playerSimilar games →
  2. 2
    FishOmatic — Steam game cover

    FishOmatic

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required. Shares Casual with Castaway: Lost Horizon.

    Build your dream ocean island fish factory! This is an automation game for beginners or experts that would like to chill while automating their fish factory. Scout ocean for new fishing locations, send your robots to get a haul of fish, then automate the processing of them into a cozy empire.

    AdventureSimulationCasualSingle-playerSimilar games →
  3. 3
    Sky Homestead — Steam game cover

    Sky Homestead

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required.

    A cozy sky-island farming and automation game. Restore a shattered kingdom of floating islands: grow crops, hire a crew of helper bots, build little production lines, and send cargo balloons sailing between the isles you bring back to life.

    2027IndieAdventureSimulationSingle-playerSimilar games →
  4. 4
    Hundred Days - Winemaking Simulator — Steam game cover

    Hundred Days - Winemaking Simulator

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required.

    Winemaking could be your best adventure. Make the best wine interacting with soil and nature and take your winery to the top. Your beautiful journey into the winemaking tradition starts now.

    2021StrategyIndieSimulation24.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Autonauts — Steam game cover

    Autonauts

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required. Shares Casual with Castaway: Lost Horizon.

    In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.

    2019IndieSimulationCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    MR FARMBOY — Steam game cover

    MR FARMBOY

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required. Shares Casual with Castaway: Lost Horizon.

    MR FARMBOY is a colony farming game with automation. Build your dream farm, grow crops, raise animals, attract villagers, and hire workers to automate everything.

    2026StrategyIndieSimulation9.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Hungry Meem — Steam game cover

    Hungry Meem

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required.

    Meems, the hungry creatures that live under the World Tree, are in danger of extinction! Let's make the Meems' lives happy by exploring around the World Tree with them and developing their settlement!

    2025Simulation29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Farm Manager World — Steam game cover

    Farm Manager World

    Single-player alternative to Castaway: Lost Horizon — playable solo, no multiplayer required. Shares Casual with Castaway: Lost Horizon.

    Dive into the agricultural life with Farm Manager World! Manage your own farm across vibrant global locations, cultivate exotic crops, and build your agribusiness empire. Welcome to sustainable farming at its finest.

    2025StrategyIndieSimulation11.99 USDSingle-playerSimilar games →