IMHO.

Single-player games like Ortharion project

Below are 9 single-player Steam games similar to Ortharion project, 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 Ortharion project page.

Ranked picks

  1. 1
    Sanctum Mage — Steam game cover

    Sanctum Mage

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

    Sanctum Mage is a magic fantasy-themed beat 'em up action-adventure game. you will: forge dynamic combat strategies, combine randomly empowered arcane blessings, and pilot enchanted war machines to break through swarms of foes.

    2026ActionIndieAdventure8.09 USDSingle-playerSimilar games →
  2. 2
    Deadsiege — Steam game cover

    Deadsiege

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

    Enter the apocalyptic fantasy world filled with monsters and demons, become the only warrior experiences intense combats and slay thousands of enemies in an epic action RPG.

    2020ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  3. 3
    Deathless Oath — Steam game cover

    Deathless Oath

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

    Become an ancient unholy creature rising against mankind to claim its right to exist through fire and steel. Cut through crowds of enemies, crush them in brutal melee combat, and turn the medieval battlefield to ash. Death waits. The oath remains.

    2027ActionIndieAdventureSingle-playerSimilar games →
  4. 4
    The Awakener: Battle Tendency — Steam game cover

    The Awakener: Battle Tendency

    Single-player alternative to Ortharion project — playable solo, no multiplayer required. Shares Action and RPG with Ortharion project.

    The Awakener: Battle Tendency fuses Diablo-style build depth with Dynasty Warriors crowd-clearing. In 20–50 intense hours, shred monster hordes and craft your own style with hundreds of affixes and talents—no filler, just kill, loot, grow.

    2026ActionRPG11.98 USDSingle-playerSimilar games →
  5. 5
    Ortharion : The Last Battle — Steam game cover

    Ortharion : The Last Battle

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

    Ortharion: The Last Battle is a hack'n slash RPG that immerses you in a medieval fantasy world full of secrets. Customize your hero by combining classes, equipment and spells to create unique synergies to face formidable bosses to prove your strength.

    2025ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Undead Horde — Steam game cover

    Undead Horde

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

    Become a necromancer and raise the dead - Undead Horde is a necromantic action game with elements from RPG, strategy and hack'n'slash. Maraud through the lands of the living, raze their villages and steal their treasures. Ultimately you'll take over the whole kingdom of the living!

    2019ActionIndieAdventure16.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Last Epoch — Steam game cover

    Last Epoch

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

    Uncover the Past, Reforge the Future. Ascend into one of 15 mastery classes and explore dangerous dungeons, hunt epic loot, craft legendary weapons, and wield the power of over a hundred transformative skill trees. Last Epoch is being developed by a team of passionate Action RPG enthusiasts.

    2024ActionIndieAdventure34.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Rum & Gun — Steam game cover

    Rum & Gun

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

    Rum & Gun combines fast-paced shooter action with ARPG loot and character building. Journey across the Indian Ocean, uncover the secrets of the Drunken God, and become a legendary pirate captain. You're not on the Caribbean anymore...

    2024ActionIndieAdventure4.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Diablo® IV — Steam game cover

    Diablo® IV

    Single-player alternative to Ortharion project — playable solo, no multiplayer required. Shares Action and Adventure with Ortharion project.

    Join the fight for Sanctuary in Diablo® IV, the ultimate action RPG adventure. Experience the critically acclaimed campaign and new seasonal content.

    2023ActionAdventureMassively Multiplayer49.99 USDDeck VerifiedSingle-playerSimilar games →