Games like Doomsday: Undead Bride
Games like Doomsday: Undead Bride include Total War: WARHAMMER, Viking Rise, Foxhole, Infestation: The New Beginning, and 7 Days to Die. We matched them by the tags players give Doomsday: Undead Bride on Steam (Strategy, Strategy RPG, Massively Multiplayer, 4X, and Real Time Tactics): closest matches first, and among equally close ones the better-known games.

Total War: WARHAMMER
Shared: Strategy · 4X · Strategy RPG

Viking Rise
Shared: Strategy · Strategy RPG · 4X

Foxhole
Shared: Massively Multiplayer · Wargame · Strategy

Infestation: The New Beginning
Shared: Massively Multiplayer · Zombies · Survival

7 Days to Die
Shared: Zombies · Survival · Base Building

Kenshi
Shared: Strategy RPG · Survival · RPG

Red Solstice 2: Survivors
Shared: Strategy RPG · Zombies · Strategy

Game of Thrones Winter is Coming
Shared: Strategy · Massively Multiplayer · Strategy RPG

They Are Billions
Shared: Strategy · Zombies · Base Building

DayZ
Shared: Zombies · Survival · Massively Multiplayer

RimWorld
Shared: Strategy · Survival · Base Building

Miscreated
Shared: Survival · Zombies · Massively Multiplayer

Kingdom Heroes 8
Shared: Strategy RPG · Strategy · Real Time Tactics

PUBG: BATTLEGROUNDS
Shared: Survival · Strategy · Massively Multiplayer

ZeroSpace
Shared: Real Time Tactics · Wargame · Strategy RPG

SCUM
Shared: Massively Multiplayer · Survival · Zombies

Europa Universalis IV
Shared: Strategy · 4X · Wargame

Heroes of the Three Kingdoms 7
Shared: Strategy · Strategy RPG · Wargame

Broken Arrow
Shared: Strategy · Wargame · Real Time Tactics

Age of Wonders 4
Shared: Strategy · 4X · RPG

Plants vs. Zombies GOTY Edition
Shared: Strategy · Zombies · 2D

Rebuild 3: Gangs of Deadsville
Shared: Strategy · 4X · Survival

WARNO
Shared: Strategy · Real Time Tactics · Wargame

Factorio
Shared: Strategy · Base Building · Survival