Games like O Holy Knight
Games like O Holy Knight include Black Myth: Wukong, Soulstone Survivors, Halls of Torment, Death Must Die, and Vampire Survivors. We matched them by the tags players give O Holy Knight on Steam (Action, Action Roguelike, Action RPG, Bullet Hell, and 3D): closest matches first, and among equally close ones the better-known games.

Black Myth: Wukong
Shared: Action · Action RPG · Combat

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Action RPG

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Action

Death Must Die
Shared: Action Roguelike · Bullet Hell · Action

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Action

God of War
Shared: Action · Combat · Singleplayer

Megabonk
Shared: Action Roguelike · Bullet Hell · Action

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Hell · Action

Dragon's Dogma 2
Shared: Action RPG · Action · Fantasy

Magical Battle Cry
Shared: Action · Action RPG · Combat

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Combat

Dragon Age™: The Veilguard
Shared: Action RPG · Fantasy · Action

Spirit Hunters: Infinite Horde
Shared: Action Roguelike · Action · Action RPG

Crimson Desert Enhanced
Shared: Action · Fantasy · Combat

Fatekeeper
Shared: Action · Action RPG · 3D

FINAL FANTASY XVI
Shared: Action RPG · Action · Fantasy

Twilight Survivors
Shared: Action Roguelike · Bullet Hell · Action RPG

Noobs Want to Live
Shared: Action · Bullet Hell · Action Roguelike

Goobies
Shared: Action Roguelike · Bullet Hell · Action

Conquest Dark
Shared: Action · Action RPG · Action Roguelike

GOD FORSAKEN
Shared: Action Roguelike · Bullet Hell · Action

Weird RPG
Shared: Action · Action RPG · Fantasy

FINAL FANTASY VII REMAKE INTERGRADE
Shared: Action RPG · Action · Singleplayer

AI LIMIT
Shared: Action RPG · Action · Combat