IMHO.

Single-player games like Quantum Echo

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

Ranked picks

  1. 1
    Blame Echoes — Steam game cover

    Blame Echoes

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

    Blame Echoes is a first-person psychological horror under a frozen planet in alien ruins. Playing as pilot Adam Lorn, you explore a forgotten complex for your missing wife while facing a presence that somehow already knows you.

    2026IndieAdventureSingle-playerSimilar games →
  2. 2
    ANIQUILATION — Steam game cover

    ANIQUILATION

    Single-player alternative to Quantum Echo — playable solo, no multiplayer required. Shares Action with Quantum Echo.

    Twin Stick Shooter Multiplayer Action Game set in small planets that can be terraformed as you play! in which not only your shoots, but also the enemies and planet environment are your weapon!

    2022Action24.99 USDSingle-playerSimilar games →
  3. 3
    The Eternal Castle [REMASTERED] — Steam game cover

    The Eternal Castle [REMASTERED]

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

    The Eternal Castle [REMASTERED] is a remake of the original "ETERNAL CASTLE" from 1987, with additional game mechanics, sophisticated sound design, polished 2-bit CGA animated graphics, and modernized game design.

    2019ActionIndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Generation Zero® — Steam game cover

    Generation Zero®

    Single-player alternative to Quantum Echo — playable solo, no multiplayer required. Shares Action with Quantum Echo.

    Generation Zero is a stealth-action shooter where you wage guerilla warfare against lethal mechanical enemies. Explore a vast open world map inspired by the Swedish Cold War era, take part in the resistance alone or with up to three friends in seamless co-op.

    2019ActionAdventure24.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Syndrome — Steam game cover

    Syndrome

    Single-player alternative to Quantum Echo — playable solo, no multiplayer required. Shares Action with Quantum Echo.

    Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.

    2016ActionAdventure19.99 USDSingle-playerSimilar games →
  6. 6
    PULSAR: Lost Colony — Steam game cover

    PULSAR: Lost Colony

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

    The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits

    2021ActionIndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Sairento VR — Steam game cover

    Sairento VR

    Single-player alternative to Quantum Echo — playable solo, no multiplayer required. Shares Action and Strategy with Quantum Echo.

    VR was made for this. Perform triple jumps, wall runs, power slides and slow time down while blasting away at a foe before landing to deliver a blade attack on another. Kit yourself with katanas, firearms, bows, throwing glaives and legendary relics. Keep upgrading as you play. PURE CYBER NINJA FUN.

    2018ActionStrategyIndie8.99 USDSingle-playerSimilar games →
  8. 8
    The Deadly Tower of Monsters — Steam game cover

    The Deadly Tower of Monsters

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

    Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!

    2016ActionIndieAdventure4.49 USDDeck PlayableSingle-playerSimilar games →