Games like Bloodmoon Survivors
Games like Bloodmoon Survivors include Vampire Survivors, Megabonk, Death Must Die, Halls of Torment, and Soulstone Survivors. We matched them by the tags players give Bloodmoon Survivors on Steam (Vampires, Bullet Heaven, Action Roguelike, Roguelite, and Casual): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Vampires · Roguelite

Megabonk
Shared: Bullet Heaven · Action Roguelike · Roguelite

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

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

Soulstone Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Brotato
Shared: Action Roguelike · Bullet Heaven · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Vampires · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Hack and Slash

BALL x PIT
Shared: Roguelite · Action · Action Roguelike

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

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

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

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

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

Dead Cells
Shared: Action Roguelike · Roguelite · Adventure

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

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

Hades II
Shared: Roguelite · Action · Action Roguelike

Jotunnslayer: Hordes of Hel
Shared: Bullet Heaven · Action Roguelike · Roguelite

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

NIMRODS
Shared: Bullet Heaven · Action Roguelike · Roguelite

Goobies
Shared: Action Roguelike · Roguelite · Vampires

Rocket Rats
Shared: Action Roguelike · Roguelite · Casual

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelite