Games like Waste Walkers
Games like Waste Walkers include Kenshi, Terraria, 7 Days to Die, Enshrouded, and ARK: Survival Ascended. We matched them by the tags players give Waste Walkers on Steam (Choose Your Own Adventure, Character Customization, Open World, Survival, and CRPG): closest matches first, and among equally close ones the better-known games.

Kenshi
Shared: Open World · Survival · Sandbox

Terraria
Shared: Survival · Sandbox · Exploration

7 Days to Die
Shared: Survival · Open World · Base Building

Enshrouded
Shared: Open World · Survival · Base Building

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

The Long Dark
Shared: Survival · Open World · Exploration

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

Don't Starve Together
Shared: Survival · Open World · Sandbox

Core Keeper
Shared: Open World · Survival · Exploration

The Forest
Shared: Survival · Open World · Exploration

Once Human
Shared: Open World · Survival · Exploration

Project Zomboid
Shared: Survival · Open World · Sandbox

Valheim
Shared: Survival · Open World · Exploration

Rust
Shared: Survival · Open World · Sandbox

Fallout 4
Shared: Open World · Exploration · RPG

Dune: Awakening
Shared: Survival · Exploration · Sandbox

Palworld
Shared: Open World · Survival · Sandbox

V Rising
Shared: Open World · Survival · Base Building

VEIN
Shared: Open World · Survival · Base Building

Mount & Blade II: Bannerlord
Shared: Open World · Character Customization · Sandbox

Subnautica
Shared: Survival · Open World · Exploration

Conan Exiles Enhanced
Shared: Open World · Survival · Sandbox

Green Hell
Shared: Survival · Open World · Base Building

Fallout: New Vegas
Shared: Open World · Exploration · RPG