IMHO.

Single-player games like William and Sly: Classic Collection

Below are 8 single-player Steam games similar to William and Sly: Classic Collection, 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 William and Sly: Classic Collection page.

Ranked picks

  1. 1
    William and Sly — Steam game cover

    William and Sly

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Adventure and Casual with William and Sly: Classic Collection.

    A cozy open-world 3D adventure based on the popular 'William and Sly' Flash games. Explore a wild mountain landscape as a fox in search of mushrooms and untangle the magical machinations of a dark enchantress. Features fifteen new songs and over ten hours of gameplay!

    2024AdventureCasual14.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Otterly Lost — Steam game cover

    Otterly Lost

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Adventure and Casual with William and Sly: Classic Collection.

    Swim, dive, and explore as a curious sea otter far from home. Meet charming animals, discover hidden places, use tools, and solve light challenges as you make your way back with your favorite rock by your side.

    2026IndieAdventureCasualSingle-playerSimilar games →
  3. 3
    Papaya Plaza — Steam game cover

    Papaya Plaza

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Casual with William and Sly: Classic Collection.

    Welcome to your new life as mayor of a tourist town in this small slice of life town building game. Restore the community, meet adorable villagers, and create your dream escape at your own pace. What will you build today? Peep peep!

    2027IndieSimulationCasualSingle-playerSimilar games →
  4. 4
    The Merry Fairy — Steam game cover

    The Merry Fairy

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Casual with William and Sly: Classic Collection.

    The Merry Fairy is a scrapbook journal simulator set in a fairytale environment. Discover your inner magic by journaling and decorating in Fairy's enchanted cottage, always peaceful, safe and abundant. Choose the weather, light some candles, put on some Fairy music and let your creativity flow.

    2025IndieSimulationCasual9.99 USDSingle-playerSimilar games →
  5. 5
    Portabellows — Steam game cover

    Portabellows

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Adventure and Casual with William and Sly: Classic Collection.

    Explore a whimsical island to find… pie recipes?! Bake them by gathering or growing ingredients, which may be the key to helping out your new found quirky friends leave the island! In this wholesome 3D platformer collectathon, you can enjoy discovering the world freely at your own pace.

    2026IndieAdventureCasualSingle-playerSimilar games →
  6. 6
    Seaward — Steam game cover

    Seaward

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Adventure and Casual with William and Sly: Classic Collection.

    Seaward is a cozy exploration game where you build a ship to discover a flooded world. Find resources and power your ship with renewable energies. Meet unique characters and help them out to build a wholesome community. Make the journey your own by taking photos and filling up your journal.

    IndieAdventureCasualSingle-playerSimilar games →
  7. 7
    Flying Neko Delivery — Steam game cover

    Flying Neko Delivery

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Casual with William and Sly: Classic Collection.

    Take on the role of Onigiri, a feline witch who lives in a cottage and delivers packages flying on a broomstick. Customize your cottage, explore new worlds, forage plants and fungi, and meet quirky villagers along the way, while enjoying music by Mark Sparling, the composer for A Short Hike.

    2022IndieSimulationCasual14.99 USDSingle-playerSimilar games →
  8. 8
    Little Wolf — Steam game cover

    Little Wolf

    Single-player alternative to William and Sly: Classic Collection — playable solo, no multiplayer required. Shares Adventure and Casual with William and Sly: Classic Collection.

    In this Casual Adventure game we play as Ulf, a little wolf, who must find his pack and other creatures who have gotten lost and send them back home. There's something mysterious going on, Ulf needs to find out why this has happened to make Halwend safe again.

    2021StrategyIndieAdventure3.99 USDSingle-playerSimilar games →