IMHO.

Single-player games like DEFENDUN : Hero Defense

Below are 10 single-player Steam games similar to DEFENDUN : Hero 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 DEFENDUN : Hero Defense page.

Ranked picks

  1. 1
    Island Crusaders — Steam game cover

    Island Crusaders

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

    Island Crusaders is a cute yet brutal tactical RTS game. Defend your home against swarms of enemies as your picturesque island gets stained by the blood of your enemies. Unlock new and unique units, strategically place and move them, and defeat the impending army.

    2021ActionStrategyIndie4.99 USDSingle-playerSimilar games →
  2. 2
    Defenders Glory — Steam game cover

    Defenders Glory

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

    Defenders Glory is a Fantasy Tower Defense game with simple but deep gameplay elements: Simple mechanics that allow for near-infinite ways to be applied, allowing it to be suitable to anyone, beginners can just sit down and play, while Veterans can constantly improve themselves and their tactics.

    2021StrategyIndieRPG9.99 USDSingle-playerSimilar games →
  3. 3
    Pillar of gods — Steam game cover

    Pillar of gods

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

    A real-time strategy simulation set in a medieval fantasy world where you can summon warriors and heroes to fight. 2D side-scrolling pixel game

    2025StrategyIndieSimulation3.99 USDSingle-playerSimilar games →
  4. 4
    DefenceOrder — Steam game cover

    DefenceOrder

    Single-player alternative to DEFENDUN : Hero Defense — playable solo, no multiplayer required. Shares Strategy and Simulation with DEFENDUN : Hero Defense.

    When monster troops flocked to the kingdom, which was troubled by the king's tyranny, the king, who had been tyranny, abandoned the kingdom and left. May you be our king and guardian and protect the kingdom. Hire archers, artillery, wizards, and develop their abilities, and save the kingdom

    2022StrategySimulationCasual2.99 USDSingle-playerSimilar games →
  5. 5
    Stardust Defenders — Steam game cover

    Stardust Defenders

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

    Stardust Defenders is a tower defense, roguelike, bullet hell, where you will face hordes of enemy creatures with the power of forest spirits, leveling up and choosing upgrades that will allow you to survive.

    2023ActionStrategyIndie4.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Sears: The Sky Frontier — Steam game cover

    Sears: The Sky Frontier

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

    Sears: The Sky Frontier is a beautiful and epic real-time strategy game that puts you at the head of an army of little stone men against formidable invaders, smartly planning the battle and leading the defense in unique and atmospheric locations.

    2025ActionStrategyIndie5.99 USDSingle-playerSimilar games →
  7. 7
    Countermeasure Pioneers: Modern Drone Battlefield — Steam game cover

    Countermeasure Pioneers: Modern Drone Battlefield

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

    "Countermeasure Pioneers: Modern Drone Battlefield" is an instant strategy shooting game. Players need to operate precisely, controlling soldiers to release specially-made drones equipped with net guns to capture enemy drones and disable them.

    2024ActionStrategyIndie5.99 USDSingle-playerSimilar games →
  8. 8
    Summer of Hengyang in 1944 — Steam game cover

    Summer of Hengyang in 1944

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

    The game is set in the summer of 1944 during the defense of Hengyang, China. General Fang leads the Tenth Army with 17000 soldiers to resist 110000 Japanese soldiers for 47 days.

    2024StrategyIndieSimulation0.99 USDSingle-playerSimilar games →
  9. 9
    RealDol — Steam game cover

    RealDol

    Single-player alternative to DEFENDUN : Hero Defense — playable solo, no multiplayer required. Shares Indie and Simulation with DEFENDUN : Hero Defense.

    One day, the protagonist was reincarnated into the world of a magical girl anime that his niece loved to watch. However, disappointed by the strange situation where everyone around him looked like stones, the protagonist tries to live a normal life but constantly gets caught up in events.

    2024ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  10. 10
    Meow — Steam game cover

    Meow

    Single-player alternative to DEFENDUN : Hero Defense — playable solo, no multiplayer required. Shares Indie and Simulation with DEFENDUN : Hero Defense.

    A room filled with nothing but "Meow."You are not a cat!

    2025IndieSimulationCasual2.99 USDSingle-playerSimilar games →