IMHO.

Single-player games like Polygon War

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

Ranked picks

  1. 1
    Memo to the Underlord — Steam game cover

    Memo to the Underlord

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Sick of your dead-end dungeon job? Fend off hordes of coworkers, smash some company property and fight your way out of a corporate hellscape in this chaotic action roguelike. It's quittin' time!

    2026ActionIndieEarly Access15.00 USDSingle-playerSimilar games →
  2. 2
    Vectorfall — Steam game cover

    Vectorfall

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Vectorfall is a fast top-down space-shooter extraction roguelite built around risky sector runs. Swap between six ships mid-fight, raid hostile signals, break the Command Node, and extract your modules before Alert brings the patrols down on you.

    ActionEarly AccessSingle-playerSimilar games →
  3. 3
    草地清理工 — Steam game cover

    草地清理工

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

    Mobile and Shooting Players only need to move to play this game. Multiple ability choices Obtain different constructions through upgrades and item drops. Extra limited time capability By picking up limited time ability items, temporary ability bonuses can be obtained.

    2025ActionIndieAdventureFreeSingle-playerSimilar games →
  4. 4
    Cookiesaner — Steam game cover

    Cookiesaner

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Vampire Survivors, but the survivor is a real apricot maltipoo. A Balkan bullet-heaven: Cookie auto-fires ćevapi, devours baklava and burek to chonk up through five belly stages, and hits STAGE 4: GOD MODE — a giant Cookie rolling through the horde. Sevdah soundtrack. One dog. The whole čaršija.

    ActionIndieCasualSingle-playerSimilar games →
  5. 5
    Repetendium — Steam game cover

    Repetendium

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Repetendium is a top-down roguelike-lite shooter. Select from a rowdy group of characters to play as and wield an ever expanding variety of gear and items to conquer the underworld. Death awaits...

    2022ActionIndieAdventure5.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    七楼幸存者 — Steam game cover

    七楼幸存者

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    A 2.5d roguelike action game

    2023ActionIndieCasual3.99 USDSingle-playerSimilar games →
  7. 7
    Froguelike — Steam game cover

    Froguelike

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Your choices matter in Froguelike where you play as a frog on a mission to eat all the bugs. Level up, choose new tongues and upgrades, become unstoppable and run straight into the swarm! Unlock all frogs, tongues, items and chapters to become the most powerful frog in the pond.

    2024ActionIndieCasual2.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Don't Shit On My #!$@& Roof — Steam game cover

    Don't Shit On My #!$@& Roof

    Single-player alternative to Polygon War — playable solo, no multiplayer required. Shares Action and Early Access with Polygon War.

    Pigeons are plotting to ruin your roof - it's time to fight back in Don't Shit On My #!$@& Roof! Battle through bosses, collect powerful artifacts, and outwit the pigeon horde in this hilarious 2D roguelite pixel art game.

    2022ActionIndieEarly AccessSingle-playerSimilar games →