Single-player games like O Holy Knight
Below are 13 single-player Steam games similar to O Holy Knight, 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 O Holy Knight page.
Ranked picks
- 1
Halls of Torment
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 2
One Step From Eden
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Build a powerful deck, cast spells on the fly, battle evolving enemies, find game-changing artifacts, make friends or make enemies, just make it to Eden.
- 3
FORCED SHOWDOWN
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Deckbuilding empowers this challenging bullet hell adventure! Each character is a unique experience: Choose a deck of unlockable cards to boost you in new ways every battle - "My whirlwind shoots fireballs!?". Battle hordes of brutal foes to become a superstar in C-SAR’s ever-changing game show.
- 4
Conquest Dark
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action and Early Access with O Holy Knight.
Experience an ARPG's rapid ascension to power in minutes, packed with savage, survivors-like action and devastating sword & sorcery combat. Perfect your builds through Dark Ritual runs that will decide humanity's future as you battle endless hordes across haunting ruins and cursed kingdoms.
- 5
Monsters are Coming!
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Beware, Monsters are Coming! In this Tower-Survivor rogue-lite, you protect an ever-moving city from unrelenting hordes. Gather resources, fortify defences, and survive for as long as you can. Will you reach the Ark?
- 6
Achilles: Survivor
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Thousands of enemies. One survivor. Fight like a demigod, build deadly defenses, and grow stronger after every run in this fast-paced bullet heaven set in mythic Greece.
- 7
Spirit Hunters: Infinite Horde
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
You are the Spirit Hunters in this action rogue-lite. Slay huge waves of monsters and harvest their souls for ever increasing power. Unlock many playable characters, abilities, maps and more through a deep progression system.
- 8
God Of Weapons
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Embark on a thrilling journey in God of Weapons, an action roguelike where you must ascend the tower of Zhor to reclaim the last light for the world. To survive the monster onslaught on each tower's level, you'll need to obtain and carefully organize weapons and accessories in your inventory.
- 9
Project Lazarus
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
You are the first party mech pilot of alien planet colonizers! Project Lazarus is a survival game with rogue-lite elements. Deploy and upgrade your mech to the metal!
- 10
Tavern Tycoon - Dragon's Hangover
Single-player alternative to O Holy Knight — playable solo, no multiplayer required.
Run your fantasy RPG tavern - let travellers take shelter for the night and serve 'em the best mead of their life with a good dose of humor.
- 11
Domino Simulator
Single-player alternative to O Holy Knight — playable solo, no multiplayer required.
Domino Simulator is a physics-based sandbox game in which you place various domino tiles and pieces to construct domino chains. Enjoy the odd satisfaction of watching your creation fall one after the other. Ultimately, the floor is yours to fill and the how and the what is completely up to you.
- 12
What The Gravity
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action and Early Access with O Holy Knight.
Prepare for the electrifying space adventure as a delivery specialist in the legendary United Space Force (USF). Embark on a high-octane delivery run, navigating treacherous space battlefields, and defying all odds to ensure the success of your critical mission - before the beer gets warm.
- 13
Project Lazarus 2
Single-player alternative to O Holy Knight — playable solo, no multiplayer required. Shares Action with O Holy Knight.
Deploy, adapt, and upgrade your mech in Project Lazarus 2—the next evolution of survival and rogue-lite action! Battle relentless enemies, unlock powerful upgrades, and forge your own path. Gear up and push your limits as every run brings new strategies and intense challenges.