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

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelike

Megabonk
Shared: Action Roguelike · Roguelike · Bullet Hell

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelike

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

Risk of Rain 2
Shared: Action Roguelike · Roguelike · Action

The Spell Brigade
Shared: Bullet Hell · Action Roguelike · Roguelike

Enter the Gungeon
Shared: Bullet Hell · Action Roguelike · Roguelike

Brotato
Shared: Bullet Hell · Roguelike · Action Roguelike

Crab Champions
Shared: Action Roguelike · Roguelike · Bullet Hell

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

Ravenswatch
Shared: Roguelike · Action Roguelike · Action

Mage Arena
Shared: Action · Dark Fantasy · Casual

Hero Siege
Shared: Action Roguelike · Action RPG · Roguelike

Hades
Shared: Action Roguelike · Action · Roguelike

Nuclear Throne
Shared: Action Roguelike · Roguelike · Bullet Hell

Hades II
Shared: Roguelike · Action · Action Roguelike

Returnal™
Shared: Bullet Hell · Roguelike · Action

Apocalypse Party
Shared: Action Roguelike · Casual · Bullet Hell

Pass the Fear
Shared: Action Roguelike · Bullet Hell · Roguelike

Beautiful Mystic Survivors
Shared: Bullet Hell · Action Roguelike · Casual

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Roguelike · Casual

ELDEN RING NIGHTREIGN
Shared: Roguelike · Action · Action RPG

Conquest Dark
Shared: Action · Action Roguelike · Bullet Hell