IMHO.

Single-player games like PolyGunner

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

Ranked picks

  1. 1
    GUNWATCH: Conflict Survival — Steam game cover

    GUNWATCH: Conflict Survival

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

    1-16 Player COMBAT ZONE & 1-4 Player COOP Zombie Wave Survival in Comic style. Singleplayer and Multiplayer Playthrough. Get ready for GUNWATCH: Conflict Survival!

    2023ActionIndieCasualFreeDeck PlayableSingle-playerSimilar games →
  2. 2
    HANK — Steam game cover

    HANK

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

    When an evil teddy bear wields dark magic to corrupt all the other toys in the house, it's up to HANK to defend his home before his family returns.

    2023ActionIndieAdventure4.99 USDSingle-playerSimilar games →
  3. 3
    Obscurity: Unknown Threat — Steam game cover

    Obscurity: Unknown Threat

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

    Obscurity: Unknown Threat is a horror shooter game where a team of soldiers must survive against a hidden foe. The game contains both conventional symmetrical FPS game modes as well as asymmetrical battles vs the Obscurity.

    2026ActionIndieEarly AccessSingle-playerSimilar games →
  4. 4
    O.T.B.R.O.S.: Haze of Kazantip — Steam game cover

    O.T.B.R.O.S.: Haze of Kazantip

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

    O.T.B.R.O.S.: Haze of Kazantip is a shooter about the Crimean Exclusion Zone in the style of OLR, Anomaly, and Lost Alpha mods, black humor and harsh social satire. Collect anomalies in jars, treat hemorrhoids, and fight evil spirits. Absurdity, hardcore, and complete freedom in the world await you.

    2027ActionIndieSingle-playerSimilar games →
  5. 5
    Broken War — Steam game cover

    Broken War

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

    Broken War is an intense first-person shooter that combines different multiplayer modes.

    2024ActionIndieMassively Multiplayer0.99 USDSingle-playerSimilar games →
  6. 6
    Gun Ugly — Steam game cover

    Gun Ugly

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

    Gun Ugly is a surreal action packed First Person Shooter. Dash, slide and kick your way through scores of manic enemies in a colourful multiverse that provides you with an arsenal of ridiculous weaponry. In your hands a trombone is just as dangerous as a bucket of pupples.

    2022ActionFreeDeck PlayableSingle-playerSimilar games →
  7. 7
    Target React Force — Steam game cover

    Target React Force

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

    Target React Force is a realistic tactical VR experience where you can Train, Plan and Execute your ideas, with gameplay focused on randomisation and replayability. Use your tactical skills to navigate through the Live Scenarios and Training layouts to neutralise the targets and save the hostages.

    2022ActionStrategyIndie12.99 USDSingle-playerSimilar games →
  8. 8
    Plastic Battlegrounds — Steam game cover

    Plastic Battlegrounds

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

    Set up the battlefield with an ever growing list of units, vehicles, and emplacements! Then either join the battle as a plastic soldier or be life sized and tower over the chaos.

    2025ActionStrategyIndie9.99 USDSingle-playerSimilar games →