IMHO.

Single-player games like BULLETARIUM

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

Ranked picks

  1. 1
    Dump of the Dead X — Steam game cover

    Dump of the Dead X

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

    Heavily drawing inspiration from the likes of Zombies Ate My Neighbors, DUMP OF THE DEAD X casts you as a guy who’s just chilling in every man’s safe space — the bathroom.

    2025Action5.99 USDSingle-playerSimilar games →
  2. 2
    Zombobox: Bredo Story — Steam game cover

    Zombobox: Bredo Story

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

    It seems like a zombie apocalypse has begun in the world, but it's somehow quiet... Maybe ask an elderly drunked person what happened? He says that he stopped everything, but how?

    ActionIndieAdventureSingle-playerSimilar games →
  3. 3
    Super Buff HD — Steam game cover

    Super Buff HD

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

    Super Buff HD is a fast-paced skate-surf-FPS. Dash, bounce, grind, blast, shred, shoot, and soar through a fever dream world of unhinged weirdness. Defeat all the buff dudes. Get a high score. Be a winner. Home for dinner.

    2023ActionIndieAdventure1.79 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Beyond Sunset — Steam game cover

    Beyond Sunset

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

    Cyberpunk first-person shooter with a rich story and RPG elements. You are Lucy, an enhanced street samurai searching for lost memories. Fight in large, open, interactive levels overtaken by yakuza, zombies, robots and bosses!

    2025ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    hate.net — Steam game cover

    hate.net

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

    An abandoned arena shooter overtaken by bots. You are a mere passerby, a witness to a world that has long been lost to fake accounts and false advertisers. Thousands before you, and thousands after you.

    2025ActionIndie4.99 USDSingle-playerSimilar games →
  6. 6
    Fashion Police Squad — Steam game cover

    Fashion Police Squad

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

    Even at this moment, our fashionable city is under assault. Baggy pants, dull suits, sightings of socks with sandals. A message needs to be sent, and it needs to be sent in style... Time to serve some good ol' Fashion Justice!

    2022ActionIndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    MULLET MADJACK — Steam game cover

    MULLET MADJACK

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

    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!

    2024ActionIndie19.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Viscerafest — Steam game cover

    Viscerafest

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

    Viscerafest is a Sci-Fi Fantasy Singleplayer Arena FPS with minor Collectathon elements. Fight through hordes of aliens and eldritch monstrosities wielding a slew of powerful weapons, juggling your resources, and exploring over 23 intricately designed hand-crafted levels.

    2025ActionIndie19.99 USDDeck PlayableSingle-playerSimilar games →