Games like Fire Everything!
Games like Fire Everything! include Vampire Survivors, Deep Rock Galactic: Survivor, BALL x PIT, Halls of Torment, and Megabonk. We matched them by the tags players give Fire Everything! on Steam (Action Roguelike, Action, Bullet Hell, Roguelite, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

BALL x PIT
Shared: Action · Roguelite · Bullet Hell

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

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Brotato
Shared: Action Roguelike · Bullet Hell · Singleplayer

Nova Drift
Shared: Bullet Hell · Action Roguelike · Roguelite

Rogue: Genesia
Shared: Action Roguelike · Bullet Hell · Roguelite

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Skul: The Hero Slayer
Shared: Action · Action Roguelike · 2D

Hades
Shared: Action Roguelike · Roguelite · Action

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

暖雪 Warm Snow
Shared: Action Roguelike · Roguelite · 2D

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Monsters are Coming!
Shared: Action · Roguelite · Action Roguelike

Cultivation Story: Reincarnation
Shared: Action Roguelike · Bullet Hell · Roguelite

Sephiria
Shared: Action Roguelike · Roguelite · Action