IMHO.

Single-player games like Human Defense [RTS]

Below are 11 single-player Steam games similar to Human Defense [RTS], 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 Human Defense [RTS] page.

Ranked picks

  1. 1
    End War RTS — Steam game cover

    End War RTS

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    Inspired by modern science fiction! A modern real-time war game, the screen is in the style of realism, the fast-paced attack effect is easy to fatigue, easy to use and simple to operate, mainly in the traditional style

    2018ActionStrategyIndie2.99 USDSingle-playerSimilar games →
  2. 2
    Creeper World 4 — Steam game cover

    Creeper World 4

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

    2020ActionStrategyIndie24.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Attack on Toys — Steam game cover

    Attack on Toys

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    Relive Your Childhood Toys comes to life! Build your Army Toys, make battle scenario, watch the Toys battling each other, and customize your play with Attack on Toys Toy Box. Command your Army Toys to fight againts another toys strategically and keep them alive during battle!

    2021ActionStrategyIndie6.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    ReEarth — Steam game cover

    ReEarth

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    ReEarth is an exciting TD & (RTS) indie game. Here, you will play as humanity's last hope. You will fend off the oncoming swarms by continuously building your base and dispatching various types of units. Prepare for the challenge and save the future of humanity!

    2024StrategyIndieRPG7.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Creeper World IXE — Steam game cover

    Creeper World IXE

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    The unstoppable alien force known as The Creeper has returned, devouring thousands of worlds in its path, and yours is next. Battle against the Creeper fluid in a groundbreaking pixel-level simulation to prove that humanity will rule the galaxy forever!

    2024ActionStrategyIndie19.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    春秋 — Steam game cover

    春秋

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    此为以春秋时代为背景,历史战略类即时制游戏。两千多年前华夏大地锦绣山河一眼尽收,可在其间建造城郭,构筑关隘,修筑长城,农商、车船、战阵行走其间。礼崩乐坏,百家兴起、诸侯争霸、异族入侵、合纵连横,列国之伐兵、伐交、伐谋就此展开。磅礴壮丽的春秋画卷待君前来指点江山!

    2022StrategyIndieSimulation8.99 USDSingle-playerSimilar games →
  7. 7
    Simulator of Ukraine 1991 — Steam game cover

    Simulator of Ukraine 1991

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    This game is a global strategy, which is primarily focused on Ukraine after leaving the Soviet occupation. Here you will be given control of Ukraine with the opportunity to change history and intervene in the events of that time.

    2024StrategyIndieSimulation3.99 USDSingle-playerSimilar games →
  8. 8
    Geo-Political Simulator 2026 Edition — Steam game cover

    Geo-Political Simulator 2026 Edition

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    The latest expansion of the ultra-realistic world simulator, where you play as the head of state or the opposition! New Features: tourism simulator, party strategies with regime censures, personal wealth management, a European army, AI and robotics.

    2025StrategyIndieSimulation59.99 USDSingle-playerSimilar games →
  9. 9
    Amber Time [RPG] — Steam game cover

    Amber Time [RPG]

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Indie and Simulation with Human Defense [RTS].

    Amber world, a game simulating life, come! Let's experience life together

    2020IndieSimulation1.99 USDSingle-playerSimilar games →
  10. 10
    Amber Time Pocket [RPG] — Steam game cover

    Amber Time Pocket [RPG]

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Indie and Simulation with Human Defense [RTS].

    Free world, a game simulating life, come! Let's experience life together

    2022IndieSimulation2.99 USDSingle-playerSimilar games →
  11. 11
    King War [RTS] — Steam game cover

    King War [RTS]

    Single-player alternative to Human Defense [RTS] — playable solo, no multiplayer required. Shares Strategy and Indie with Human Defense [RTS].

    Who can be the last king in the dogfight between the countries of the earth and aliens? A pixel-style real-time strategy game, a simple and easy experience for placing units

    2023StrategyIndieSimulation3.99 USDSingle-playerSimilar games →