Single-player games like Castle Dark
Below are 16 single-player Steam games similar to Castle Dark, 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 Castle Dark page.
Ranked picks
- 1
Deck of Darkness: Infernal Depths
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and RPG with Castle Dark.
Deck of Darkness: Infernal Depths is an atmospheric dark fantasy dungeon crawl sure to get the blood flowing. Battle your way through the many levels of the lightless abyss to come face to face with your terrifying destiny.
- 2
Fury of the Axe
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and RPG with Castle Dark.
A brutal action RPG where rage is your only weapon. Fight through a cursed world, break your enemies, and unleash the fury within.
- 3
Dead Wells: The Devil Fragment
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and RPG with Castle Dark.
Hack, Slash, Parry and Dodge your foes in this Souls-like Action RPG. Explore the countryside in search of The Devil Fragment while fighting enemies with a multi game inspired combat system where you can launch foes into the air and then juggle them to build your combo meter for multiple buffs.
- 4
The Moon Hell
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
Welcome to a world of darkness, where every step can be your last. Explore a stunning world filled with fear and horror, solve puzzles, and endure combat trials to become a hero and protect your world from darkness. Become a warrior ready to fight anything that stands in your way in this action RPG.
- 5
Book of Demons
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and Indie with Castle Dark.
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!
- 6
Rune Knights
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and Indie with Castle Dark.
Rune Knights is a cooperative action RPG focused on customization, crafting, and combat. Customize your character's aesthetics, stats, gameplay, and gear as you battle through procedurally generated and hand-crafted levels with your allies.
- 7
Grim Dawn
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and Indie with Castle Dark.
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.
- 8
Tower of Kalemonvo
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Action and RPG with Castle Dark.
Crawl to the top of the TOWER OF KALEMONVO, a hardcore isometric ARPG with randomly generated levels meant for fans of slower paced action games. Fight cultists and monsters, scavenge for magical loot, learn powerful spells and fully customize your stats and skills!
- 9
Ashes of the Night
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares RPG with Castle Dark.
A fantasy adventure that will leave the player wanting more!
- 10
Wormskull
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
(Single player RPG) Rising from the much enjoyed Ashes of the Night, Wormskull unveils itself with Duncan and Maduin finding themselves constantly running. They dodge at every turn, ever evading the grotesque hand of doom that reaches for them and the rest of the world.
- 11
Verdungo
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
King Verdungo has been taken hostage and it's up to you to rescue him. Travel across a diverse world to make your way back home, hopefully you arrive in time to save him before he meets an untimely demise.
- 12
Angel Made
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
Athos & Destiny are pulled into war and must fight for justice. (Single Player RPG)
- 13
Dungeon Crawler Daniel
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
Daniel and a group of adventurers must complete the Ravana Dungeon to win the ultimate prize so he can buy his house back from his parents.
- 14
Barry of Wrath
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
A fantasy adventure that will take the players on a journey they wanted nothing to do with!
- 15
Seventh Star
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares Indie and RPG with Castle Dark.
The War of the Wolves rages on and only the Seventh Star can bring it to an end. Single-player RPG
- 16
The Grindstone
Single-player alternative to Castle Dark — playable solo, no multiplayer required. Shares RPG with Castle Dark.
Create a party of four and begin your open world adventure. Slay monsters, complete quests and find magical treasure.