IMHO.

Single-player games like Tranquil Builds

Below are 9 single-player Steam games similar to Tranquil Builds, 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 Tranquil Builds page.

Ranked picks

  1. 1
    Easy Bubbles — Steam game cover

    Easy Bubbles

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Easy Bubbles is a relaxing aquarium simulation filled with cute sea creatures. Manage your aquarium with click and idle mechanics, collect resources and have a pleasant experience in the colorful and peaceful underworld.

    2025IndieSimulationCasual3.59 USDSingle-playerSimilar games →
  2. 2
    Lepidarium — Steam game cover

    Lepidarium

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Relax and collect hundreds of unique butterflies and moths in this cozy idle game. Watch caterpillars transform from larva to chrysalis to winged beauty, customize lush greenhouses, and discover rare species from monarchs to atlas moths.

    2026IndieSimulationCasual6.39 USDSingle-playerSimilar games →
  3. 3
    Molluscarium — Steam game cover

    Molluscarium

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Relax and collect over 500 unique molluscs in this cozy idle game. Watch larvae grow into stunning adults in real-time, customize vibrant aquatic habitats across 9 themed packs, and discover rare species from garden snails to deep-sea cephalopods.

    2026IndieSimulationCasualSingle-playerSimilar games →
  4. 4
    Amphibarium — Steam game cover

    Amphibarium

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Relax and collect hundreds of unique frogs and salamanders in this cozy idle game. Watch tadpoles undergo metamorphosis in real-time, customize lush terrariums, and discover rare species. Let your vivarium thrive in the background while you work or study. Start your collection today!

    2026IndieSimulationCasual7.99 USDSingle-playerSimilar games →
  5. 5
    Hidden Capybaras with Orange — Steam game cover

    Hidden Capybaras with Orange

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Set out on an adventurous journey, searching for capybaras with orange during both day and night in this exceptional hidden object game.

    2023IndieCasual1.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    NoSlack Pets: Lo-Fi Paws — Steam game cover

    NoSlack Pets: Lo-Fi Paws

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    A warm and cozy desktop cat companion game. Let Miino keep you company while you work or study, focus with Pomodoro, Lo-Fi, to-do lists, and white noise; collect Headgear and decorations, decorate your room, join the Online Study Room, go fishing, and build your own relaxing desktop space.

    2025IndieSimulationCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Cats Everywhere — Steam game cover

    Cats Everywhere

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Find cats in a relaxing hidden-object game for cat lovers. Can you find them all?

    2024IndieAdventureCasual0.99 USDSingle-playerSimilar games →
  8. 8
    Chonkers — Steam game cover

    Chonkers

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Chonkers is a cozy and relaxing idle game. Adopt the cutest fur balls and watch them ramp up the chonk scale as you play with them. Find them a new family. They’ll pay A LOT for your hefty chonker! Complete your collection by finding all the breeds and the rarest space cats!

    2024SimulationCasual4.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Merek's Market — Steam game cover

    Merek's Market

    Single-player alternative to Tranquil Builds — playable solo, no multiplayer required. Shares Casual with Tranquil Builds.

    Merek's Market is a chaotic crafting game about running a medieval shop. Take charge of your shop as you haggle, barter and craft your way through a comical single player campaign or team up with friends in couch co-op to supply the whole town.

    2021ActionIndieSimulation11.99 USDSingle-playerSimilar games →