IMHO.

Single-player games like Xerminus

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

Ranked picks

  1. 1
    Bullet Runner — Steam game cover

    Bullet Runner

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

    A clone army is taking over the world. Kill them all in an epic single-player campaign to save humanity, and yourself!

    2024ActionIndieAdventure14.99 USDSingle-playerSimilar games →
  2. 2
    Sektori — Steam game cover

    Sektori

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

    Sektori is an intense, fast paced twin-stick shooter infused with hard hitting techno music. A game where the high-adrenaline gameplay, visuals, and music come together to transport you into another state of consciousness.

    2025Action14.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Crimsonland — Steam game cover

    Crimsonland

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

    Thousands of aliens, giant spiders, mutant lizards, and more are on the attack - can you survive the onslaught? Crimsonland is a top-down shooter with a touch of RPG. Unlock over 30 weapons and over 50 perks from quirky to brutal. Complete the quest and show your skills in five survival modes.

    2014ActionIndieRPG13.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Earl vs. the Mutants — Steam game cover

    Earl vs. the Mutants

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

    Save humanity in a mutant-ridden apocalypse! Dive headfirst into Earl vs. the Mutants, a high-octane top-down survival action-roguelite set in the aftermath of a nuclear apocalypse.

    2024ActionAdventureRPG2.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Chippy — Steam game cover

    Chippy

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

    Chip destructible bosses apart pixel-by-pixel in this twin-stick bullet-hell shooter.

    2019ActionIndie7.49 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Pesticide Not Required — Steam game cover

    Pesticide Not Required

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

    Mow down countless crops and corrupt critters while crafting game-breaking builds! Pesticide Not Required is an action roguelite bullet heaven game with farming sim elements that offers a myriad of stats and special character traits to create wildly diverse run possibilities.

    2024Action3.57 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    UBERMOSH Vol.5 — Steam game cover

    UBERMOSH Vol.5

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

    The fifth volume of the arcade series UBERMOSH.

    2017ActionIndie0.99 USDSingle-playerSimilar games →
  8. 8
    State of Anarchy: Master of Mayhem — Steam game cover

    State of Anarchy: Master of Mayhem

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

    Prepare for bullet hell action and crazy driving! Your town is on fire, anarchy reigns the streets, aliens rampage in the sky! Grab your gun and join the fun!

    2017ActionIndieCasual2.99 USDSingle-playerSimilar games →