IMHO.

Single-player games like Commander, Millions of Undead Are Heading Our Way

Below are 8 single-player Steam games similar to Commander, Millions of Undead Are Heading Our Way, 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 Commander, Millions of Undead Are Heading Our Way page.

Ranked picks

  1. 1
    MAR: Millions Are Rising — Steam game cover

    MAR: Millions Are Rising

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required. Shares Simulation with Commander, Millions of Undead Are Heading Our Way.

    Millions of monsters are escaping the hole. Stop them with a unique arsenal of towers, nukes, and deep upgrades in this incremental tower defense game.

    2026ActionStrategyIndieSingle-playerSimilar games →
  2. 2
    Idle Survivor — Steam game cover

    Idle Survivor

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required.

    Your ship is stranded and cannot move. Something out here has woken up, and it breeds faster than you can kill it. All you can do is upgrade your arsenal and fight back, wave after wave, for as long as you can hold.

    ActionIndieRPGSingle-playerSimilar games →
  3. 3
    Pixel Empires — Steam game cover

    Pixel Empires

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required.

    A pixel idle tower defense where your kingdom fights on its own. Workers gather, your army auto-battles endless waves, spells self-cast — you aim the bow, chain combos and choose what to upgrade. Bosses, titans, prestige, 100+ achievements. The night is endless. The bow is yours.

    2026StrategyIndieCasual2.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Sir, We Have an Orc Problem — Steam game cover

    Sir, We Have an Orc Problem

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required. Shares Simulation with Commander, Millions of Undead Are Heading Our Way.

    Sir, We Have an Orc Problem is an incremental-style tower defense game where you face an overwhelming number of orcs. Greet them with even more bullets, bombs and lasers!

    2026StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    OUTWORKS — Steam game cover

    OUTWORKS

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required. Shares Simulation with Commander, Millions of Undead Are Heading Our Way.

    Build a towering 3D fortress and hold the line. Stack floors, raise walls, and place turrets by altitude to survive escalating swarms of ground and flying machines closing on your core — then watch one collapsing tower take everything with it. A lean, neon, code-built base-defense roguelite.

    2026StrategyIndieSimulation4.24 USDSingle-playerSimilar games →
  6. 6
    Emojis vs Zombies — Steam game cover

    Emojis vs Zombies

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required.

    Emojis vs Zombies is an Idle Desktop Companion Zombie Defense Game! Open packs, Collect Emoji Defenders, Upgrade your squad or base and survive endless waves even while you're AFK or working!

    2026ActionStrategyIndieSingle-playerSimilar games →
  7. 7
    Attrition Line — Steam game cover

    Attrition Line

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required. Shares Simulation with Commander, Millions of Undead Are Heading Our Way.

    A factory game about building an army. Mine, smelt, and manufacture soldiers on an assembly line, then send them to fight a swarm that grows every hour. The more you automate, the bigger your army. Fall behind and the line breaks.

    2027StrategyIndieSimulationSingle-playerSimilar games →
  8. 8
    There is no HERO: Desktop Quest — Steam game cover

    There is no HERO: Desktop Quest

    Single-player alternative to Commander, Millions of Undead Are Heading Our Way — playable solo, no multiplayer required.

    In this comedic desktop companion RPG, let the villagers worship your woolly savior, gather resources, build and defend your town, all while you are being productive!

    2027AdventureRPGSingle-playerSimilar games →