IMHO.

Single-player games like PROT

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

Ranked picks

  1. 1
    The Alters — Steam game cover

    The Alters

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

    Explore an emotional sci-fi game with a unique blend of survival, adventure, and base-building elements. Help Jan Dolski, the sole survivor of an ill-fated space expedition, create alternative versions of himself to escape a hostile planet and tackle personal turmoils with this unconventional crew.

    2025Adventure34.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    JETT: The Far Shore + Given Time — Steam game cover

    JETT: The Far Shore + Given Time

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

    Embark on an interstellar trip and deploy to a mythic ocean planet in a low-flying jett in this cinematic science fiction action adventure with immersive sim elements from Superbrothers, known for Sword & Sworcery EP.

    2023ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Little Astronaut — Steam game cover

    Little Astronaut

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

    Explore the silent Virelia Research Station in this atmospheric sci-fi puzzle adventure. Restore forgotten systems, solve environmental puzzles, and uncover what changed the abandoned station through documents and exploration.

    IndieAdventureSingle-playerSimilar games →
  4. 4
    Rover's Tale — Steam game cover

    Rover's Tale

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

    A creature-collecting metroidvania, in a world where dogs live on forever amongst the stars as Space Rovers! Become a LAIKA Rover! Catch & research creatures, then use their abilities to explore a new frontier! Upgrade & customize, as you help your canine companions to unravel an ancient mystery!

    2026IndieAdventureCasualSingle-playerSimilar games →
  5. 5
    Captain Forever Trilogy — Steam game cover

    Captain Forever Trilogy

    Single-player alternative to PROT — playable solo, no multiplayer required.

    Millions of players worldwide have flown, built, and fought their way through Captain Forever. CF Trilogy brings Captains Forever, Successor, and Impostor to Steam with a beautiful new renderer, new modules, and a reimagined world written by acclaimed novelist Cassandra Khaw.

    2018ActionStrategy9.99 USDSingle-playerSimilar games →
  6. 6
    InfraSpace — Steam game cover

    InfraSpace

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

    Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.

    2023StrategyIndieSimulation24.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Spaceflight Simulator — Steam game cover

    Spaceflight Simulator

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

    In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.

    2022IndieSimulationEarly Access14.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Hero of the Kingdom: The Lost Tales 2 — Steam game cover

    Hero of the Kingdom: The Lost Tales 2

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

    Lovely adventuring RPG series. Casual, story-driven journey and quests. Your city is suffering from the attack of unknown monsters. You must save your people and become a heroic princess.

    2021IndieAdventureRPG1.39 USDSingle-playerSimilar games →