Games like No More Demon
Games like No More Demon include The Void Rains Upon Her Heart, Rabbit and Steel, Harbinger, Vampire Survivors, and 20 Minutes Till Dawn. We matched them by the tags players give No More Demon on Steam (Action Roguelike, Spectacle fighter, Bullet Hell, FPS, and Shoot 'Em Up): closest matches first, and among equally close ones the better-known games.

The Void Rains Upon Her Heart
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up

Rabbit and Steel
Shared: Action Roguelike · Bullet Hell · Cute

Harbinger
Shared: Action Roguelike · FPS · Bullet Hell

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Indie

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Shoot 'Em Up

Bloodshed
Shared: Action Roguelike · FPS · Bullet Hell

Megabonk
Shared: Action Roguelike · Bullet Hell · Indie

Homura Hime
Shared: Spectacle fighter · Bullet Hell · Female Protagonist

Deadzone: Rogue
Shared: FPS · PvE · Action Roguelike

Roboquest
Shared: Action Roguelike · FPS · Bullet Hell

Nova Drift
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up

Touhou Dystopian
Shared: Action Roguelike · Female Protagonist · 3D

Crab Champions
Shared: Action Roguelike · Bullet Hell · 3D

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Female Protagonist

SULFUR
Shared: Action Roguelike · FPS · Gun Customization

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

Deep Rock Galactic: Rogue Core
Shared: FPS · Action Roguelike · PvE

BALL x PIT
Shared: Bullet Hell · Action Roguelike · Shoot 'Em Up

Bright Memory
Shared: FPS · Female Protagonist · First-Person

Mirror 2: Project X
Shared: 3D · Female Protagonist · FPS

Deep Rock Galactic
Shared: FPS · PvE · First-Person

Bright Memory: Infinite
Shared: FPS · Female Protagonist · Action

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · PvE

Rustil: Eternal Labyrinth Castle
Shared: Action Roguelike · Spectacle fighter · Female Protagonist