Games like Ember Crusade IV
Games like Ember Crusade IV include Enter the Gungeon, Vampire Survivors, Relic Hunters Zero: Remix, Death Must Die, and Megabonk. We matched them by the tags players give Ember Crusade IV on Steam (Action Roguelike, Looter Shooter, Twin Stick Shooter, Bullet Hell, and Indie): closest matches first, and among equally close ones the better-known games.

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

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Relic Hunters Zero: Remix
Shared: Looter Shooter · Twin Stick Shooter · Action Roguelike

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

Megabonk
Shared: Action Roguelike · Indie · Bullet Hell

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Action RPG

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

Nuclear Throne
Shared: Action Roguelike · Indie · Bullet Hell

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

Voidigo
Shared: Action Roguelike · Twin Stick Shooter · Bullet Hell

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

I Am Legion: Stand Survivors
Shared: Action Roguelike · Bullet Hell · Indie

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Indie · Pixel Graphics

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

Magicraft
Shared: Action Roguelike · Looter Shooter · Bullet Hell

Crab Champions
Shared: Action Roguelike · Looter Shooter · Bullet Hell

Risk of Rain 2
Shared: Action Roguelike · Looter Shooter · Loot

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Hell · Action RPG

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

Revita
Shared: Action Roguelike · Twin Stick Shooter · Looter Shooter

Dungreed
Shared: Action Roguelike · Pixel Graphics · Indie

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

R.I.P. - Reincarnation Insurance Program
Shared: Action Roguelike · Looter Shooter · Bullet Hell