IMHO.

Single-player games like Prototype Blocks 2

Below are 12 single-player Steam games similar to Prototype Blocks 2, 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 Prototype Blocks 2 page.

Ranked picks

  1. 1
    Cubicus — Steam game cover

    Cubicus

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    An addictive puzzle game with many challenging levels of varying difficulty.

    2021IndieCasual1.99 USDSingle-playerSimilar games →
  2. 2
    Cubicus 2 — Steam game cover

    Cubicus 2

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Continuation of the first part of the puzzle in which you will find even more levels of varying difficulty.

    2021IndieCasual1.99 USDSingle-playerSimilar games →
  3. 3
    Switchball HD — Steam game cover

    Switchball HD

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Transform the Marble ball with metal, electric and lighter-than-air properties to solve 3D puzzles based on real-world physics in the quickest time. More than 30 challenging levels!

    2021IndieSimulationCasual12.99 USDSingle-playerSimilar games →
  4. 4
    Ynglet — Steam game cover

    Ynglet

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    In Ynglet, you jump, dash, slide, bounce and float your way through an abstract, effervescent sky. Melt into the reactive, dynamic soundtrack, while beautiful colors make every moment a visual treat.

    2021ActionIndieAdventure7.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Love In Drawing — Steam game cover

    Love In Drawing

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Reflect and draw! Love In Drawing is a game that aims to make you reflect to solve levels where you need to gather red and blue balls.

    2019StrategyIndieCasual1.99 USDSingle-playerSimilar games →
  6. 6
    The Bridge — Steam game cover

    The Bridge

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    The Bridge is a logic puzzle game that forces you to reevaluate your preconceptions of physics and perspective. It is Isaac Newton meets M. C. Escher. Manipulate gravity to redefine the ceiling as the floor while venturing through impossible architectures.

    2013StrategyIndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Rochard — Steam game cover

    Rochard

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Fast-paced platforming action and mind-bending puzzles based on gravity

    2011ActionIndieCasualDeck VerifiedSingle-playerSimilar games →
  8. 8
    PHOGS! — Steam game cover

    PHOGS!

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    In PHOGS! you play as a duo of dogs on a captivating, puzzle-filled adventure. Linked by a stretchy belly, you’ll need to bark, bite and bounce your way through obstacles set across the themed worlds of Food, Sleep and Play, in co-op or single-player.

    2020IndieAdventureCasual24.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Crazy Race — Steam game cover

    Crazy Race

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Crazy Race is a fast-paced arcade racing game with low poly graphics and great physics.

    2021IndieSimulationCasual0.99 USDSingle-playerSimilar games →
  10. 10
    Neon Light — Steam game cover

    Neon Light

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    You have to play as a little boy who found himself on an unknown and forgotten planet, now you need to do everything to leave it.

    2021IndieAdventureCasual1.99 USDSingle-playerSimilar games →
  11. 11
    Prototype Blocks — Steam game cover

    Prototype Blocks

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Prototype Blocks is a puzzle game with many different levels of varying difficulty.

    2021IndieCasual10.99 USDSingle-playerSimilar games →
  12. 12
    Way of the Wizard — Steam game cover

    Way of the Wizard

    Single-player alternative to Prototype Blocks 2 — playable solo, no multiplayer required. Shares Indie and Casual with Prototype Blocks 2.

    Way of the Wizard is a first-person adventure game. Take on the role of a traveler who wants to become a wizard.

    2023IndieAdventureRPG10.99 USDSingle-playerSimilar games →