Games like Zombie Playground™
Games like Zombie Playground™ include Resident Evil 6, Notes of Soul, Resident Evil 4, Resident Evil 4 (2005), and Resident Evil Requiem. We matched them by the tags players give Zombie Playground™ on Steam (Action, Indie, RPG, Adventure, and Zombies): closest matches first, and among equally close ones the better-known games.

Resident Evil 6
Shared: Action · Zombies · Third-Person Shooter

Notes of Soul
Shared: Action · Adventure · Indie

Resident Evil 4
Shared: Action · Horror · Third-Person Shooter

Resident Evil 4 (2005)
Shared: Action · Zombies · Third-Person Shooter

Resident Evil Requiem
Shared: Action · Zombies · Third-Person Shooter

The Killing Antidote
Shared: Action · Zombies · Third-Person Shooter

Dungeon Munchies
Shared: Action · Indie · Adventure

Resident Evil 5
Shared: Action · Zombies · Third-Person Shooter

REMNANT II®
Shared: Action · Adventure · RPG

Resident Evil Revelations 2
Shared: Action · Zombies · Horror

South Park™: The Stick of Truth™
Shared: RPG · Adventure · Action

Dying Light
Shared: Zombies · Horror · Action

Daymare: 1998
Shared: Action · Zombies · Indie

Resident Evil 3
Shared: Action · Zombies · Horror

Caster
Shared: Action · Indie · Adventure

Remnant: From the Ashes
Shared: Action · RPG · Adventure

The Walking Dead: Saints & Sinners
Shared: Action · Zombies · Adventure

OUTRIDERS
Shared: RPG · Action · Adventure

Warhammer 40,000: Space Marine 2
Shared: Action · Adventure · Third-Person Shooter

Deadlight
Shared: Action · Indie · Zombies

Escape From Duckov
Shared: Action · Adventure · Third-Person Shooter

Cat Quest
Shared: RPG · Adventure · Action

Yakuza: Like a Dragon
Shared: Action · RPG · Adventure

Last Oasis
Shared: Action · RPG · Adventure