IMHO.

Single-player games like Mortal Darkness

Below are 9 single-player Steam games similar to Mortal Darkness, 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 Mortal Darkness page.

Ranked picks

  1. 1
    Book of Demons — Steam game cover

    Book of Demons

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

    Book of Demons is a Hack & Slash in which YOU decide the length of quests. Wield magic cards instead of weapons and slay the armies of darkness in the dungeons below the Old Cathedral. Save the terror-stricken Paperverse from the clutches of the Archdemon himself!

    2018ActionIndieAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Wolcen: Lords of Mayhem — Steam game cover

    Wolcen: Lords of Mayhem

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

    Carve your path in this Hack’n’Slash free from class boundaries. Purify a world shattered by corruption, and uncover the grim secrets and forgotten horrors lurking in the shadows of this forsaken land as you rise in Power. Your Inner aspect beckons—will you answer?

    2020ActionIndieAdventure29.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Alaloth: Champions of The Four Kingdoms — Steam game cover

    Alaloth: Champions of The Four Kingdoms

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

    A hardcore high fantasy isometric action RPG set in a huge sandbox world ruled by magic and monsters. Master deep skill-based combat, forge powerful builds, explore unforgiving lands and dungeons, face brutal boss fights, uncover ancient secrets, and save Plamen from its inevitable doom!

    2024ActionStrategyIndie34.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Grim Dawn — Steam game cover

    Grim Dawn

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

    Enter an apocalyptic fantasy world where humanity is on the brink of extinction, iron is valued above gold and trust is hard earned. This ARPG features complex character development, hundreds of unique items, crafting and quests with choice & consequence.

    2016ActionIndieAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    The Incredible Adventures of Van Helsing — Steam game cover

    The Incredible Adventures of Van Helsing

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

    Put on your wide-brimmed hat, grab your weapons and embark on an incredible adventure in the gothic-noir world of Borgovia, where mad science threatens the fragile peace between monster and mortal.

    2013ActionIndieAdventure14.99 USDSingle-playerSimilar games →
  6. 6
    Warhammer: Chaosbane — Steam game cover

    Warhammer: Chaosbane

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

    In a world ravaged by war and dominated by magic, you must rise up to face the Chaos hordes. Playing solo or with up to four players in local or online co-op, choose a hero from four character classes and prepare for epic battles wielding some of the most powerful artefacts of the Old World.

    2019ActionAdventureRPG29.99 USDSingle-playerSimilar games →
  7. 7
    The Incredible Adventures of Van Helsing II — Steam game cover

    The Incredible Adventures of Van Helsing II

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

    In the second part of the unfolding saga that could also be enjoyed independently, you can explore new corners of this unique world and experience the mix of old-school gothic and mad science, with more action, powerful foes and plenty of stunning places to visit.

    2014ActionIndieAdventure14.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Last Epoch — Steam game cover

    Last Epoch

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

    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 →
  9. 9
    The Spirit — Steam game cover

    The Spirit

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

    The Spirit is a simple Action RPG with elements of old school dungeon crawlers. Creatures and Demons are entering through the Rift. The people of the realm need you, but so does your family.

    2021ActionIndieAdventure8.99 USDSingle-playerSimilar games →