Games like Looter Survivors
Games like Looter Survivors include Vampire Survivors, Hades, Death Must Die, Halls of Torment, and Magicraft. We matched them by the tags players give Looter Survivors on Steam (Action Roguelike, Looter Shooter, Action, Hack and Slash, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades
Shared: Action Roguelike · Hack and Slash · Action

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

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

Magicraft
Shared: Action Roguelike · Looter Shooter · Bullet Hell

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

Hades II
Shared: Action · Action Roguelike · Hack and Slash

Nuclear Throne
Shared: Action Roguelike · Action · Bullet Hell

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

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Brotato
Shared: Action Roguelike · Bullet Hell · Roguelite

Hero Siege
Shared: Action Roguelike · Hack and Slash · Action

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

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

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

Roboquest
Shared: Action Roguelike · Roguelite · Looter Shooter

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

SYNTHETIK: Legion Rising
Shared: Action Roguelike · Action · Top-Down Shooter

Gunfire Reborn
Shared: Roguelite · Looter Shooter · Action Roguelike

Army of Ruin
Shared: Action Roguelike · Bullet Hell · Hack and Slash

Escape From Duckov
Shared: Action · Looter Shooter · Top-Down Shooter

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter