Games like Loki's Revenge
Games like Loki's Revenge include Vampire Survivors, Death Must Die, Megabonk, 20 Minutes Till Dawn, and Halls of Torment. We matched them by the tags players give Loki's Revenge on Steam (Action Roguelike, Bullet Heaven, Bullet Hell, RPG, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

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

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

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

Brotato
Shared: Action Roguelike · Bullet Hell · Bullet Heaven

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

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Action Roguelike

Hades
Shared: Action Roguelike · Roguelite · Action

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

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

Arms of God
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Asgard's Fall — Viking Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

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

Time Wasters
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

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