IMHO.

Single-player games like Defense Tower Simulator

Below are 9 single-player Steam games similar to Defense Tower Simulator, 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 Defense Tower Simulator page.

Ranked picks

  1. 1
    Endorfire Tower Defense — Steam game cover

    Endorfire Tower Defense

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

    Place your towers to defend yourself against the onslaught of enemies, collect gems to upgrade your towers, and vanquish the evils back to where they came!

    2021ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  2. 2
    Defenders Glory — Steam game cover

    Defenders Glory

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

    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
    Lord Clicker — Steam game cover

    Lord Clicker

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

    Lord Clicker combines Clicker and Tower Defense in one game. Click to accumulate gold coins and make your choice: buy populace to generate wealth on your behalf, or hire men to defend your village.

    2024ActionStrategyIndie2.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    西游记2021 — Steam game cover

    西游记2021

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

    This game takes Sun Wukong, Tang monk, pig Bajie, sand monk and little white dragon as the protagonists. It tells the story of their journey to the west to learn scriptures, going through difficulties and dangers, subduing demons and subduing demons, and finally obtaining the Scriptures.

    2021StrategyIndieAdventure9.99 USDSingle-playerSimilar games →
  5. 5
    Medievaly: Battle Simulator — Steam game cover

    Medievaly: Battle Simulator

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

    Feeling Medievaly? Travel to the most vibrant version of the Dark Ages yet to defend your kingdom from encroaching enemies! Devise creative strategies, manage resources, and enjoy a dynamic simulated medieval battlefield where every decision matters and the unexpected will always happen!

    2025ActionIndieAdventure8.99 USDSingle-playerSimilar games →
  6. 6
    Ajax’s Trial — Steam game cover

    Ajax’s Trial

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

    Legendary Hoplite: Ajax's Trial is the prologue version of Legendary Hoplite, a game that combines Tower Defense and Action RPG genres. In this game, you'll need to build fortifications, upgrade your army, and create your own unique strategy to fight off hordes of monsters across 7 levels.

    2023ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  7. 7
    Legendary Hoplite: Arachne’s Trial — Steam game cover

    Legendary Hoplite: Arachne’s Trial

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

    Legendary Hoplite: Arachne’s Trial is a combination of Tower Defense and Action RPG. Upgrade your army, get the best gear, and craft unique strategies across 10 levels. Face Arachne, and seamlessly transfer progress to the main game.

    2024ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  8. 8
    God of Failure — Steam game cover

    God of Failure

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

    Defend your castle from the orcish chavs, lure them into your traps and destroy them.

    2017StrategyIndieAdventure3.99 USDSingle-playerSimilar games →
  9. 9
    Zombie Apocalypse 2021 — Steam game cover

    Zombie Apocalypse 2021

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

    Zombie Apocalypse 2021 is a fast old-school shooting game in platformer style. Kill all zombies and protect your city in this super fast game!

    2021ActionIndieAdventure1.99 USDSingle-playerSimilar games →