IMHO.

Single-player games like Project Roy

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

Ranked picks

  1. 1
    Galactic Vault — Steam game cover

    Galactic Vault

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

    Build your weapon to its full potential in Galactic Vault, a fast-paced FPS roguelite. Discover endless upgrade combinations, craft diverse builds, and unleash devastating abilities. Get ready to infiltrate high-security vaults and recover lost tech.

    2026ActionIndie19.99 USDSingle-playerSimilar games →
  2. 2
    Deadzone Rogue 2 — Steam game cover

    Deadzone Rogue 2

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

    Fight as Talon 13-10 in this FPS roguelite adventure set on a fallen Earth. Combine weapons, augments, and elements to forge devastating builds, and blast through Monarch’s endless machines. Grow stronger each run, solo or with friends.

    2026ActionSingle-playerSimilar games →
  3. 3
    OmniGun — Steam game cover

    OmniGun

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

    Obliterate hostile automatons in this vibrant physics-based roguelite FPS. Master the OmniGun, a prototype gun capable of firing any ammunition imaginable as you shoot, explode, burn, shock, slice, freeze, shrink, and impale your way to the exit.

    ActionIndieSingle-playerSimilar games →
  4. 4
    It Consumes — Steam game cover

    It Consumes

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

    It Consumes is a frantic arena shooter that takes place in the dark. See by beating your heart to reveal your foes. Choose your preferred playstyle with both roguelite and classic modes, or use the extensive custom games editor to create your own game modes with unique rules and modifiers.

    2026ActionSingle-playerSimilar games →
  5. 5
    Alien Grounds — Steam game cover

    Alien Grounds

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

    Single-player arena shooter. Weird weapons. Relentless robots. Easy to play, hard to score. Enter the chaos, shoot the bots, and compete in the Monthly Challenge.

    2026ActionIndie4.99 USDSingle-playerSimilar games →
  6. 6
    RIPCORE — Steam game cover

    RIPCORE

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

    KILL. EVOLVE. REPEAT. Fight through 9 circles of Hell in this high-octane roguelike FPS. Craft overpowered builds with stacking upgrades to crush thousands of demons and defeat legendary bosses. Hell is full—start cleaning.

    ActionIndieRPGSingle-playerSimilar games →
  7. 7
    PositronX — Steam game cover

    PositronX

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

    PositronX is a futuristic rogue-lite fps featuring fast-paced combat, creative movement, time control mechanics and breathtaking visuals, each playthrough giving you a unique experience.

    2020ActionIndieAdventure19.99 USDSingle-playerSimilar games →
  8. 8
    Roboquest — Steam game cover

    Roboquest

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

    Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.

    2023ActionIndie24.99 USDDeck PlayableSingle-playerSimilar games →