IMHO.

Single-player games like Oh No! I’m Surrounded by Polygons!

Below are 8 single-player Steam games similar to Oh No! I’m Surrounded by Polygons!, 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 Oh No! I’m Surrounded by Polygons! page.

Ranked picks

  1. 1
    Timber Fever — Steam game cover

    Timber Fever

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    Cut down the infinitely tall Tree to grow stronger. Timber Fever is an action, incremental roguelike where you create chaos with wacky tools while surviving enemy waves.

    2026ActionIndieCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Saikiri — Steam game cover

    Saikiri

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    Defeat hordes of enemies in Saikiri, a Japanese style roguelite action game where you complete unique objectives, loot, level up, unlock characters, and upgrade your arsenal to create crazy builds every run!

    ActionIndieAdventureSingle-playerSimilar games →
  3. 3
    Potassium Poisoning — Steam game cover

    Potassium Poisoning

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    Potassium Poisoning is a post-apocalyptic survivor game. Where you play as a monkey fighting off radioactive hoards, defeat monsters and complete objectives to earn DNA points, unlocking new mutations and traits to better help you fight and survive.

    2026ActionIndieCasualSingle-playerSimilar games →
  4. 4
    Isekai HKV — Steam game cover

    Isekai HKV

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    Enter another world with a VTuber ally. Move, dodge, collect magic and items, and survive the monster waves. Your VTuber ally can protect, break you out, revive you, and change how each fight plays.

    2026ActionStrategyIndieSingle-playerSimilar games →
  5. 5
    Worship Demon — Steam game cover

    Worship Demon

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    "Worship Demon" is a fast 2D survivor with anime xianxia art and dazzling effects. Play a demonic cultivator, explore secret realms, ruins, and seek spells. Survive, beat boss, master Dao, and grow stronger. Each run unlocks new Arts, bonds, talents—forge your own immortal path.

    2026ActionIndieAdventure6.99 USDSingle-playerSimilar games →
  6. 6
    I'm No Demonlord — Steam game cover

    I'm No Demonlord

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    "I'm No Demonlord" is a Roguelike shooter bullet hell game. High freedom in mechanics leads to unique playthroughs. As a demon-possessed hero, battle enemies, grow, and unveil dark schemes. Can he accept his new role? Save "kinds" or destroy "outsiders"? Good or evil? The choice is yours.

    2026ActionIndieAdventure8.99 USDSingle-playerSimilar games →
  7. 7
    Don't Die, Collect Loot — Steam game cover

    Don't Die, Collect Loot

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    It's time to become ridiculously powerful in an arcade roguelite RPG with no limits on your power! Guide your hero through infinite retro fantasy worlds, get loot, gain upgrades, and keep growing their power as you rip through hordes of enemies in the ultimate power fantasy!

    2025ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Shard Squad — Steam game cover

    Shard Squad

    Single-player alternative to Oh No! I’m Surrounded by Polygons! — playable solo, no multiplayer required. Shares Action and Indie with Oh No! I’m Surrounded by Polygons!.

    Form a squad of elemental creatures and face hordes of challenging enemies! Choose your Shards according to their synergies to gain new abilities, and equip relics that will make the winds blow in your favor! Survive through different environments and save your lands!

    2025ActionIndieAdventure6.99 USDDeck PlayableSingle-playerSimilar games →