IMHO.

Single-player games like Perilous Warp

Below are 16 single-player Steam games similar to Perilous Warp, 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 Perilous Warp page.

Ranked picks

  1. 1
    Prodeus — Steam game cover

    Prodeus

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

    Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.

    2022ActionIndieAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Dread Templar — Steam game cover

    Dread Templar

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

    Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!

    2023ActionIndie19.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    DOOMED — Steam game cover

    DOOMED

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

    DOOMED is a First Person Shooter with horror elements, heavily inspired by old-school shooter classics.

    2018ActionIndieAdventure4.99 USDSingle-playerSimilar games →
  4. 4
    Ion Fury — Steam game cover

    Ion Fury

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

    3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!

    2019ActionIndie24.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    BRUTAL JOHN 2 — Steam game cover

    BRUTAL JOHN 2

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

    Join BRUTAL JOHN and BRUTAL DOG in a ultraviolent old-school FPS set in a world overrun by crypto-mining technologies, where it’s up to you to destroy them and reclaim control. Prepare for an adrenaline ride that pays homage to the best shooters of the '90s.

    2025ActionIndieEarly Access12.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Maximum Action — Steam game cover

    Maximum Action

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

    MAXIMUM Action is a brutal and satisfying physics-based first person shooter influenced by Hong Kong cinema, heroic slow motion bloodshed, and old-school FPS ACTION.

    2018ActionIndieEarly Access19.99 USDSingle-playerSimilar games →
  7. 7
    Turbo Overkill — Steam game cover

    Turbo Overkill

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

    Enter Paradise as Johnny Turbo—half-metal, half-human, all-murder machine. Clean up the streets with a chainsaw leg, 15+ weapons and your hovercar as you battle the rogue AI Syn, rival bounty hunters and cyberpunks aplenty. Apogee’s most outrageous FPS since Duke Nukem 3D. Good hunting, Sir!

    2023ActionIndie19.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Turok 3: Shadow of Oblivion Remastered — Steam game cover

    Turok 3: Shadow of Oblivion Remastered

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

    Finish the hunt in this epic finale to the Turok Trilogy. Pick up immediately after the events of Turok 2: Seeds of Evil, with dual protagonists Joseph and Danielle Fireseed, of the Turok family tree, as they battle the titular antagonist Oblivion and its followers, the Flesh Eaters.

    2023ActionAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Quake II — Steam game cover

    Quake II

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

    You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.

    2007Action9.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Quake — Steam game cover

    Quake

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

    Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.

    2007Action9.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Unreal Tournament: Game of the Year Edition — Steam game cover

    Unreal Tournament: Game of the Year Edition

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

    Unreal Tournament is the original King of the Hill in the frag-or-be-fragged multiplayer gaming world. As the undisputed 1999 Game of the Year, Unreal Tournament grabbed the first person shooter genre by the soiled seat of its pants and knocked it around the room with its never-before-seen graphics, brutal edge-of-your-seat gameplay and...

    2008ActionDeck PlayableSingle-playerSimilar games →
  12. 12
    DOOM 3 — Steam game cover

    DOOM 3

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

    A demonic invasion has overwhelmed the Union Aerospace Corporation's Mars research facility. As one of only a few survivors, you must fight your way to hell and back against a horde of demons in this award-winning horror/action FPS and reimagining of the original DOOM.

    2012Action9.99 USDSingle-playerSimilar games →
  13. 13
    UNREAL LIFE — Steam game cover

    UNREAL LIFE

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

    And now, for today's story.

    2020IndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  14. 14
    Chasm: The Rift — Steam game cover

    Chasm: The Rift

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

    Prepare for terror in this ground-breaking classic old-school FPS. Following the destruction of Time you are left to battle in this horrific hellhole of multilevel interconnected missions populated by gruesome grotesque creatures.

    2022Action19.99 USDSingle-playerSimilar games →
  15. 15
    Half-Life — Steam game cover

    Half-Life

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

    Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.

    1998Action9.99 USDDeck VerifiedSingle-playerSimilar games →
  16. 16
    Painkiller — Steam game cover

    Painkiller

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

    The classic Painkiller series is back! Battle through Purgatory in fast-paced co-op action, wielding infernal weapons against relentless demonic hordes. Condemned for your sins, the Voice of the Creator offers you a chance at redemption. Will you seize it or be lost to darkness?

    2025Action9.99 USDDeck PlayableSingle-playerSimilar games →