Games like Slum Z
Games like Slum Z include Resident Evil 4, Resident Evil Requiem, Resident Evil Village, Resident Evil 3, and Resident Evil 7 Biohazard. We matched them by the tags players give Slum Z on Steam (Horror, Incremental, Roguelike, Action, and Tower Defense): closest matches first, and among equally close ones the better-known games.

Resident Evil 4
Shared: Horror · Action · Survival Horror

Resident Evil Requiem
Shared: Horror · Survival Horror · Action

Resident Evil Village
Shared: Horror · Survival Horror · Action

Resident Evil 3
Shared: Horror · Action · Zombies

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Action

Resident Evil 2
Shared: Horror · Survival Horror · Zombies

Resident Evil 4 (2005)
Shared: Horror · Action · Survival Horror

Dead Space
Shared: Horror · Survival Horror · Third-Person Shooter

The Evil Within 2
Shared: Horror · Survival Horror · Action

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Outlast
Shared: Horror · Survival Horror · Psychological Horror

Dead by Daylight
Shared: Horror · Survival Horror · Gore

Resident Evil Revelations 2
Shared: Horror · Action · Zombies

The Evil Within
Shared: Horror · Survival Horror · Action

Dying Light
Shared: Horror · Survival Horror · Zombies

Daymare: 1998
Shared: Horror · Action · Survival Horror

Resident Evil 6
Shared: Action · Horror · Zombies

Dead Space™ 2
Shared: Horror · Survival Horror · Action

Resident Evil 5
Shared: Action · Horror · Zombies

Dead Space (2008)
Shared: Horror · Action · Survival Horror

Resident Evil 0
Shared: Horror · Survival Horror · Action

Resident Evil 2 (1998)
Shared: Horror · Action · Survival Horror

Left 4 Dead 2
Shared: Zombies · Horror · Action

Resident Evil 3 Nemesis (1999)
Shared: Horror · Action · Survival Horror