Games like Bloodmoon
Games like Bloodmoon include Hades II, Hades, Halls of Torment, Soulstone Survivors, and Death Must Die. We matched them by the tags players give Bloodmoon on Steam (Action Roguelike, Hack and Slash, Roguelite, Action RPG, and Arcade): closest matches first, and among equally close ones the better-known games.

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

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

Halls of Torment
Shared: Action Roguelike · Roguelite · Action RPG

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Action RPG

Death Must Die
Shared: Action Roguelike · Roguelite · Hack and Slash

Vampire Survivors
Shared: Action Roguelike · Roguelite · Roguelike

Moonlighter
Shared: Hack and Slash · Roguelite · Action Roguelike

Cinderia
Shared: Action Roguelike · Hack and Slash · Roguelite

Path of Exile 2
Shared: Hack and Slash · Action RPG · RPG

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

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Action RPG · RPG

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Roguelite · Hack and Slash

Heroes of Hammerwatch II
Shared: Action Roguelike · Action RPG · RPG

Grim Dawn
Shared: Hack and Slash · Action RPG · RPG

VOIN
Shared: Hack and Slash · Action Roguelike · Action RPG

Children of Morta
Shared: Hack and Slash · Action Roguelike · Roguelike

Last Epoch
Shared: Hack and Slash · Action RPG · RPG

Realm of Ink
Shared: Action Roguelike · Roguelite · Hack and Slash

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Roguelite · Hack and Slash

Ravenswatch
Shared: Action Roguelike · Roguelike · Roguelite

Black Myth: Wukong
Shared: Action RPG · RPG · Action

Windblown
Shared: Action Roguelike · Hack and Slash · Roguelite