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Single-player games like Rule No. 3 Downpour

Below are 10 single-player Steam games similar to Rule No. 3 Downpour, 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 Rule No. 3 Downpour page.

Ranked picks

  1. 1
    MULLET MADJACK — Steam game cover

    MULLET MADJACK

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    MULLET MADJACK is a HIGH-OCTANE-ACTION SHOOTER that put you directly inside a CLASSIC ANIME. Pick your favorite weapon and reach the last floor; Beat your best time or try again. Haste makes waste… OF YOUR ENEMIES!

    2024ActionIndie12.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Turbo Overkill — Steam game cover

    Turbo Overkill

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    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!

    2023ActionIndie5.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    UNYIELDER — Steam game cover

    UNYIELDER

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    UNYIELDER is an intense Boss-rush Movement-FPS. Assemble your arsenal of destruction, smash your way through waves of bosses, face your own Final-Boss.

    2025ActionIndieRPG12.49 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Drunken Robot Pornography — Steam game cover

    Drunken Robot Pornography

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    Bullet-hell, boss-battle, first-person shooter, with giant-robots, martinis and jetpacks. YES. Drink the cocktails. Fight the titans. Make your own Titans. Drink your friend's cocktails.

    2014ActionIndie14.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Waves — Steam game cover

    Waves

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!

    2011ActionIndieFreeDeck VerifiedSingle-playerSimilar games →
  6. 6
    Vampire Hunters — Steam game cover

    Vampire Hunters

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    To hunt vampires, you'll need guns. Lots of guns. Mow down hordes of undead creatures by stacking your guns into absurd, over-the-top builds. Unleash your firepower and survive the mayhem in this Roguelite Survivors FPS.

    2024ActionIndie4.49 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Mushihimesama — Steam game cover

    Mushihimesama

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action with Rule No. 3 Downpour.

    Battle huge "Koju" bugs in CAVE's beautiful fantasy shooter, Mushihimesama. Experience the thrill of bullet hell from the masters of the genre as you evade visually stunning shot patterns with thousands of bullets.

    2015Action9.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    ODDCORE — Steam game cover

    ODDCORE

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    You have only 5 minutes to stylishly explode your way through the hordes of corrupted entities in a retro FPS, roguelike liminal-nightmare... and Timmee is here to help!

    2026ActionIndieEarly Access12.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Rule No. 1 — Steam game cover

    Rule No. 1

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    A silky smooth Arena First Person Shooter with a prime focus on game-feel. Massacre waves of sentient metallic geometry and their monster compatriots as you fight for your Hi-Score! Designed to be the ultimate 'warm-up' or 'waiting-for-download' game!

    2021ActionIndieCasual2.99 USDSingle-playerSimilar games →
  10. 10
    Rule No. 2 — Steam game cover

    Rule No. 2

    Single-player alternative to Rule No. 3 Downpour — playable solo, no multiplayer required. Shares Action and Indie with Rule No. 3 Downpour.

    Because sometimes all that you really want from life is to be blowing up a bunch of $#!% while also gazing at some chesticles -- as fast and as expeditiously as possible. Sturgeon General's WARNING: 'Risk of Waifus, Guns, Nudity, Instant Action and Mayhem.'

    2022ActionIndieCasual2.99 USDSingle-playerSimilar games →