Games like SOS Zombie Survivors
Games like SOS Zombie Survivors include 7 Days to Die, Core Keeper, Valheim, DayZ, and Once Human. We matched them by the tags players give SOS Zombie Survivors on Steam (Exploration, FPS, Post-apocalyptic, Base Building, and Open World): closest matches first, and among equally close ones the better-known games.

7 Days to Die
Shared: Open World · Base Building · Post-apocalyptic

Core Keeper
Shared: Exploration · Open World · Pixel Graphics

Valheim
Shared: Open World · Exploration · Base Building

DayZ
Shared: Open World · Post-apocalyptic · Zombies

Once Human
Shared: Open World · Exploration · Action

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Post-apocalyptic · Open World

SurrounDead
Shared: Post-apocalyptic · Open World · Exploration

Enshrouded
Shared: Open World · Base Building · Exploration

Fallout 4
Shared: Post-apocalyptic · Exploration · Open World

Sons Of The Forest
Shared: Open World · Base Building · Exploration

Left 4 Dead 2
Shared: FPS · Zombies · Action

VEIN
Shared: Open World · Base Building · Post-apocalyptic

Terraria
Shared: Exploration · Pixel Graphics · Survival

Rust
Shared: Open World · Survival · FPS

Fallout: New Vegas
Shared: Post-apocalyptic · Open World · Exploration

Metro Exodus
Shared: FPS · Post-apocalyptic · Open World

Project Zomboid
Shared: Open World · Post-apocalyptic · Zombies

Satisfactory
Shared: Base Building · Open World · Exploration

ICARUS
Shared: Base Building · Exploration · Open World

Green Hell
Shared: Open World · Base Building · Action

Fallout 76
Shared: Post-apocalyptic · Open World · Base Building

ARK: Survival Evolved
Shared: Open World · Base Building · Survival

V Rising
Shared: Base Building · Open World · Survival

Far Cry® New Dawn
Shared: FPS · Open World · Post-apocalyptic