IMHO.

Single-player games like HOLOSAGA: Invasion of the HoloX

Below are 9 single-player Steam games similar to HOLOSAGA: Invasion of the HoloX, 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 HOLOSAGA: Invasion of the HoloX page.

Ranked picks

  1. 1
    Touhou Big Big Battle — Steam game cover

    Touhou Big Big Battle

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    just a touhou rts game

    2018ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  2. 2
    Mystery Of Dust — Steam game cover

    Mystery Of Dust

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    A sudden mechanical rebellion. An ordinary girl who has gained power. Faced with a "world-class" crisis. Is there a secret behind the rebellion? Is the power gained safe? Can a few people's journey save the world? Find out in our Tower Defense game-- Mystery of the Dust!

    2024StrategyIndieRPG3.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Secrets of Magonia — Steam game cover

    Secrets of Magonia

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    In this tower defence game, you enter the world of Magonia and defend it against hordes of humans, orcs, ogres and other evil forces. Fight in different areas and adapt your strategy to the terrain and the enemy forces.

    2024StrategyIndieAdventure10.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Miryam: The Polluted Land — Steam game cover

    Miryam: The Polluted Land

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    A narrative-driven tower defense game that plunges you into a cursed realm. Guide a 10-year-old girl, scarred by relentless school bullying and family neglect, as she battles monstrous embodiments of her inner torment in a desperate quest to recover her lost brother—and ultimately, herself.

    2025StrategyIndieAdventure4.99 USDSingle-playerSimilar games →
  5. 5
    Holy Stone Mage — Steam game cover

    Holy Stone Mage

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    This is a mixed type game that can cultivate characters, and battles can be divided into tower defense and duel modes. Players can also enter random maps for exploration, challenge difficult bosses, or discover treasures

    2024ActionStrategyIndie1.99 USDSingle-playerSimilar games →
  6. 6
    Prime World: Defenders — Steam game cover

    Prime World: Defenders

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.

    2013StrategyIndieRPG9.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Touhou Monster TD ~ 幻想乡妖怪塔防 — Steam game cover

    Touhou Monster TD ~ 幻想乡妖怪塔防

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    Easy to learn but hard to master, Touhou Monster TD is a unique Tower defense Game. Control your character, level up and unlock tower skills and character talents, use your wisdom to defeat incoming enemies. Travel the Gensokyo, find out why the “Incident” happened this time.

    2021ActionStrategyIndie18.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    ❂ Heroes of Hexaluga ❂ — Steam game cover

    ❂ Heroes of Hexaluga ❂

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy and Indie with HOLOSAGA: Invasion of the HoloX.

    Travel the world discovering its history, buy or find on the map weapons, magic, or allies and take part in battles revealing all the secrets of the world.

    2017ActionStrategyIndie199.99 USDSingle-playerSimilar games →
  9. 9
    Plants vs. Zombies GOTY Edition — Steam game cover

    Plants vs. Zombies GOTY Edition

    Single-player alternative to HOLOSAGA: Invasion of the HoloX — playable solo, no multiplayer required. Shares Strategy with HOLOSAGA: Invasion of the HoloX.

    Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks.

    2009Strategy4.99 USDDeck PlayableSingle-playerSimilar games →