IMHO.

Single-player games like Zombie Defense

Below are 16 single-player Steam games similar to Zombie Defense, 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 Zombie Defense page.

Ranked picks

  1. 1
    Yet Another Zombie Defense — Steam game cover

    Yet Another Zombie Defense

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.

    2014ActionStrategyIndieFreeSingle-playerSimilar games →
  2. 2
    THE AEON FALL — Steam game cover

    THE AEON FALL

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Endless waves of 100,000 infected pour toward you. A brutally hard roguelike defense built on the Paradox of Progress: every advance raises the noise, and louder noise draws a deadlier swarm. Design your base, break through with one unit you control, and adapt each run. Survive a planet alone.

    ActionStrategyIndieSingle-playerSimilar games →
  3. 3
    Rotten Tide — Steam game cover

    Rotten Tide

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Rotten Tide is a horizontal 2D tower defense game where players must protect the world from the attacks of all kinds of monsters who are threatening the humans in big cities all around the world.

    2021ActionStrategyIndie5.99 USDSingle-playerSimilar games →
  4. 4
    Ultimate Zombie Defense — Steam game cover

    Ultimate Zombie Defense

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?

    2020ActionStrategyAdventure4.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Blood Waves — Steam game cover

    Blood Waves

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Hardcore and bloody shooter where you will have to repel the attacks of the living dead using the destroying traps, defensive barricades and also weapon of close and long-range combat.

    2018ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  6. 6
    They Are Billions — Steam game cover

    They Are Billions

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Strategy with Zombie Defense.

    They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

    2019Strategy29.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Atom Zombie Smasher — Steam game cover

    Atom Zombie Smasher

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Zombie Defense.

    The zombie apocalypse is upon us and it's up to you to evacuate everyone before they fall prey to the undead. Conduct massive rescue operations with a helping hand from snipers, artillery crews, orbital bombardments, and more.

    2011StrategyIndie9.99 USDSingle-playerSimilar games →
  8. 8
    Defend Your Life: TD — Steam game cover

    Defend Your Life: TD

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Defend Your Life! Is tower defense set in human body where players are fighting against villain hordes of viruses and bacteria. Levels and units correspond to reality of human anatomy.

    2015ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  9. 9
    Warplanes: WW1 Fighters — Steam game cover

    Warplanes: WW1 Fighters

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

    Become a pilot! Immerse in WW1 aerial combat like never before in a captivating VR experience. Be a pilot during the Great War in Warplanes: WW1 Fighters. No matter whether you prefer arcade games or flight simulators – a variety of options will let you adjust the game to your preferences.

    2021ActionSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    Warplanes: Battles over Pacific — Steam game cover

    Warplanes: Battles over Pacific

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

    Warplanes: Battles over Pacific opens the next chapter in aviation history. Become a World War II pilot and take part in the campaign against the Empire of Japan. The sequel to the hit Warplanes: WW1 Fighters, takes dogfight to a new level.

    2023ActionSimulation19.99 USDSingle-playerSimilar games →
  11. 11
    The Pirate: Caribbean Hunt — Steam game cover

    The Pirate: Caribbean Hunt

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Hail to the Captain! Sail into the heart of the Caribbean in the Age of Piracy - the time of black flags and white skulls, blue waves and golden opportunities. Hoist the Jolly Roger and grab the steering wheel to sail through battles and raids, ransoms and treasures, to become the Crimson King of the Antilles!

    2016ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  12. 12
    The Pirate: Plague of the Dead — Steam game cover

    The Pirate: Plague of the Dead

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Action and Strategy with Zombie Defense.

    Command the most fearsome pirates in an exciting Caribbean adventure! Plague of the Dead is a new installment of The Pirate series, featuring an open world without loading screens, dynamic day and night cycle and weather system, it offers each gamer an unforgettable experience.

    2017ActionStrategyIndieFreeSingle-playerSimilar games →
  13. 13
    Hex Commander: Fantasy Heroes — Steam game cover

    Hex Commander: Fantasy Heroes

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Zombie Defense.

    Build an army and lead your heroes into battle in an epic fantasy strategy game. Hex Commander: Fantasy Heroes is a turn-based strategy game that will put you right in the middle of war between Humans, Orcs, Goblins, Elves, Dwarves and the undead.

    2017StrategyIndieFree To PlayFreeSingle-playerSimilar games →
  14. 14
    Warplanes: WW2 Dogfight — Steam game cover

    Warplanes: WW2 Dogfight

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

    Grab the control yoke of a warplane and jump into the battlefields of World War 2 in this thrilling combat flight action game. In each of the campaigns for USA, Great Britain, USSR, Germany and Japan you will assume the role of a pilot and squadron leader of an elite air force unit.

    2019ActionIndieFree To PlayFreeDeck PlayableSingle-playerSimilar games →
  15. 15
    Shogun's Empire: Hex Commander — Steam game cover

    Shogun's Empire: Hex Commander

    Single-player alternative to Zombie Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Zombie Defense.

    Lead your clan, build an army, wage wars — become Shogun and rule over Japan. Shogun’s Empire: Hex Commander is a turn-based strategy game with multi-layered gameplay mechanics.

    2019StrategyIndie9.99 USDSingle-playerSimilar games →
  16. 16
    Space Commander: War and Trade — Steam game cover

    Space Commander: War and Trade

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

    Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.

    2020ActionIndieRPGFreeSingle-playerSimilar games →