Games like Hell is Other Demons
Games like Hell is Other Demons include Vampire Survivors, Enter the Gungeon, Skul: The Hero Slayer, The Binding of Isaac: Rebirth, and Megabonk. We matched them by the tags players give Hell is Other Demons on Steam (Bullet Hell, Action Roguelike, Fast-Paced, Roguelike, and Difficult): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Skul: The Hero Slayer
Shared: Action Roguelike · Roguelike · Indie

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Difficult

Megabonk
Shared: Action Roguelike · Roguelike · Bullet Hell

Nuclear Throne
Shared: Action Roguelike · Roguelike · Bullet Hell

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

BALL x PIT
Shared: Bullet Hell · Action Roguelike · Roguelike

Realm of the Mad God Exalt
Shared: Bullet Hell · Roguelike · Action Roguelike

Dungreed
Shared: Action Roguelike · Roguelike · Roguelite

Rogue Legacy
Shared: Action Roguelike · Roguelike · Indie

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Risk of Rain (2013)
Shared: Action Roguelike · Roguelike · Indie

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Brotato
Shared: Bullet Hell · Roguelike · Action Roguelike

Spelunky
Shared: Action Roguelike · Roguelike · Difficult

Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelite

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Difficult

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

Downwell
Shared: Action Roguelike · Arcade · Indie

Nova Drift
Shared: Bullet Hell · Action Roguelike · Arcade

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Roguelite

Noita
Shared: Roguelike · Difficult · Action Roguelike

Rogue Legacy 2
Shared: Arcade · Roguelite · Difficult