IMHO.

Single-player games like HIIT

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

Ranked picks

  1. 1
    Simulacro — Steam game cover

    Simulacro

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

    Simulacro is a 3D action-platformer with a measured pace and unconventional mechanics. In a world of strange physics and synthetic creatures, the experience challenges genre standards with a unique approach.

    2026ActionStrategyIndie4.99 USDSingle-playerSimilar games →
  2. 2
    Ruffy and the Riverside — Steam game cover

    Ruffy and the Riverside

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

    In Ruffy and the Riverside, you wield the magic SWAP to Copy & Paste textures - turn ice into lava or waterfalls into vines! Explore, fight, skate on straw bales, and unleash your imagination in this quirky open-world action game. Dive into an adventure that lets you literally change the world!

    2025ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Hob — Steam game cover

    Hob

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

    Transform the world of Hob! A new action-adventure from Runic Games, the award-winning studio behind Torchlight I and II. It's your chance. Make it home.

    2017ActionIndieAdventure3.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Supraworld — Steam game cover

    Supraworld

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

    Zero hand-holding. Dismantle this dense open-world of unconventional puzzles by thinking outside the box and exploiting every ability you discover. Solve mysteries hidden in plain sight where every piece of supposed decoration has a purpose.

    2025ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Star Overdrive — Steam game cover

    Star Overdrive

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

    Star Overdrive is a high-speed action adventure set in an open world. Race across an alien planet on your Hoverboard, mastering tricks, battling enemies, solving puzzles, and using your powers to overcome challenges and shape your destiny!

    2025ActionIndieAdventure34.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Supraland — Steam game cover

    Supraland

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

    Try the demo! A mix between Portal, Zelda and Metroid. Exploration, puzzles, terrible combat, secret upgrades and new abilities that help you reach new places. Playtime 12-25h.

    2019ActionIndieAdventure19.99 USDSingle-playerSimilar games →
  7. 7
    SpongeBob SquarePants: Titans of the Tide — Steam game cover

    SpongeBob SquarePants: Titans of the Tide

    Single-player alternative to HIIT — playable solo, no multiplayer required. Shares Action and Adventure with HIIT.

    Prepare to be scared! A clash between the Flying Dutchman and King Neptune has unleashed ghostly mayhem all over Bikini Bottom. Switch seamlessly between SpongeBob and Patrick, combine their unique skills and save Bikini Bottom from total ghostification!

    2025ActionAdventure39.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Yellow Taxi Goes Vroom — Steam game cover

    Yellow Taxi Goes Vroom

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

    Make full use of your advanced move-set to navigate hand-crafted retro worlds without a jump button in this vibrant love letter to the N64 era of collectathons!

    2024ActionIndieAdventure16.99 USDDeck VerifiedSingle-playerSimilar games →