Games like Undead Kingdom Survivors
Games like Undead Kingdom Survivors include Megabonk, Halls of Torment, Brotato, Soulstone Survivors, and The Spell Brigade. We matched them by the tags players give Undead Kingdom Survivors on Steam (Action Roguelike, Bullet Hell, Bullet Heaven, Roguelite, and Action): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

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

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike

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

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Roguelite

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

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

Hades
Shared: Action Roguelike · Roguelite · Action

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

Gunfire Reborn
Shared: Roguelite · Roguelike · Action Roguelike

Ravenswatch
Shared: Action Roguelike · Roguelike · Action

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

Hades II
Shared: Action · Roguelite · Action Roguelike

BALL x PIT
Shared: Bullet Hell · Roguelite · Action

Streets of Rogue
Shared: Action Roguelike · Roguelite · Roguelike

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

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

Sephiria
Shared: Action Roguelike · Roguelite · Roguelike

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

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

Conquest Dark
Shared: Bullet Heaven · Action Roguelike · Action

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

Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelite

ELDEN RING NIGHTREIGN
Shared: Roguelike · Action · Roguelite