IMHO.

Single-player games like Moonstone Island

Below are 14 single-player Steam games similar to Moonstone Island, 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 Moonstone Island page.

Ranked picks

  1. 1
    Coral Island — Steam game cover

    Coral Island

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and Adventure with Moonstone Island.

    Coral Island is a vibrant, laid-back farm sim reimagined with multiplayer! Experience enchanting island life at your own pace: farm with friends, nurture animals, build relationships, hang out with a diverse cast of characters, and dive into the magical Merfolk Kingdom.

    2023StrategyIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Research Story — Steam game cover

    Research Story

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    Set out to discover and record plants and creatures for the Violet Archive. Grow crops, tame animals, and build the perfect farm! Forge friendships along the way as you begin your life as a researcher!

    2025IndieSimulationRPG14.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    ☙ The Hawkers ❧ — Steam game cover

    ☙ The Hawkers ❧

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    The Hawkers invites you to transform a forgotten farm into an agricultural empire. Build your store from scratch, cultivate unique crops, and uncover the story behind your family's legacy. Can you save the town from Mr. Bunny's wicked schemes?

    IndieSimulationRPGSingle-playerSimilar games →
  4. 4
    Stardew Valley — Steam game cover

    Stardew Valley

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    You've inherited your grandfather's old farm plot in Stardew Valley. Armed with hand-me-down tools and a few coins, you set out to begin your new life. Can you learn to live off the land and turn these overgrown fields into a thriving home?

    2016IndieSimulationRPG14.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Fields of Mistria — Steam game cover

    Fields of Mistria

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    Start your new life! Build the farm of your dreams as you discover a world brimming with possibilities. Magic, romance, and adventure all await you in this nostalgic farming / life sim RPG!

    2024IndieSimulationRPG13.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Littlewood — Steam game cover

    Littlewood

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and Adventure with Moonstone Island.

    The world has already been saved. Now it's time to rebuild your town, learn new hobbies, and forge lifelong friendships in this peaceful and relaxing RPG.

    2020IndieAdventureSimulation14.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    My Time at Portia — Steam game cover

    My Time at Portia

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and Adventure with Moonstone Island.

    Start a new life in the enchanting town of Portia! Restore your Pa's neglected workshop to its former glory by fulfilling commissions, growing crops, raising animals, and befriending the quirky inhabitants of this charming post-apocalyptic land!

    2019IndieAdventureSimulation29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Super Zoo Story — Steam game cover

    Super Zoo Story

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    Build and manage your own personal zoo in the pixel marvel RPG, Super Zoo Story. Construct your park, care for your animals, and ensure the happiness of both critters and humans alike. Maybe even find that special someone while building the zoo of your dreams!

    IndieSimulationRPGSingle-playerSimilar games →
  9. 9
    Slay the Spire — Steam game cover

    Slay the Spire

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie with Moonstone Island.

    We fused card games and roguelikes together to make the best single player deckbuilder we could. Craft a unique deck, encounter bizarre creatures, discover relics of immense power, and Slay the Spire!

    2019StrategyIndie6.24 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Cassette Beasts — Steam game cover

    Cassette Beasts

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and RPG with Moonstone Island.

    Collect awesome monsters to use during turn-based battles in this open-world RPG, now with online multiplayer mode. Combine any two monster forms using Cassette Beasts’ Fusion System to create unique and powerful new ones!

    2023IndieRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Slime Rancher — Steam game cover

    Slime Rancher

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Indie and Adventure with Moonstone Island.

    Slime Rancher is the tale of Beatrix LeBeau, a plucky, young rancher who sets out for a life a thousand light years away from Earth on the ‘Far, Far Range’ where she tries her hand at making a living wrangling slimes.

    2017ActionIndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    The Legend of Heroes: Trails of Cold Steel — Steam game cover

    The Legend of Heroes: Trails of Cold Steel

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares RPG with Moonstone Island.

    At Thors Military Academy, Erebonia’s best learn everything from the art of war to liberal arts. First year Rean Schwarzer learns he’s been selected to join the controversial Class VII, and they’ll need to deal with more than just class warfare--they’ll need to safeguard their country from chaos.

    2017RPG39.99 USDDeck VerifiedSingle-playerSimilar games →
  13. 13
    Star Trek Prodigy: Supernova — Steam game cover

    Star Trek Prodigy: Supernova

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares Adventure with Moonstone Island.

    Dal R’El and Gwyndala race against time to save their friends, their ship, new alien species and an entire planetary system before a supernova destroys them all, while battling a deadly new enemy that will stop at nothing to destroy the Protostar and change the very course of history! 

    2022ActionAdventureDeck VerifiedSingle-playerSimilar games →
  14. 14
    Monster Hunter Stories — Steam game cover

    Monster Hunter Stories

    Single-player alternative to Moonstone Island — playable solo, no multiplayer required. Shares RPG with Moonstone Island.

    Monster Hunter Stories is an RPG that takes the world of Monster Hunter and expands upon it in new and exciting ways! No longer are you hunting monsters, but raising them! In this deep story featuring heroes known as Monster Riders, you will live alongside monsters and form lifelong bonds with them.

    2024RPG29.99 USDDeck VerifiedSingle-playerSimilar games →