Games like 1WEEK
Games like 1WEEK include Terraria, The Forest, Project Zomboid, Rust, and Valheim. We matched them by the tags players give 1WEEK on Steam (Survival, Open World Survival Craft, Mining, Sandbox, and Resource Management): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Open World Survival Craft · Survival · Sandbox

The Forest
Shared: Survival · Open World Survival Craft · Crafting

Project Zomboid
Shared: Survival · Open World Survival Craft · Sandbox

Rust
Shared: Survival · Open World Survival Craft · Crafting

Valheim
Shared: Survival · Open World Survival Craft · Crafting

The Long Dark
Shared: Survival · Open World Survival Craft · Exploration

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

Forager
Shared: Open World Survival Craft · Survival · Sandbox

7 Days to Die
Shared: Survival · Open World Survival Craft · Open World

No Man's Sky
Shared: Open World Survival Craft · Survival · Exploration

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

Starbound
Shared: Open World Survival Craft · Survival · Sandbox

Subnautica
Shared: Survival · Open World Survival Craft · Exploration

ARK: Survival Evolved
Shared: Survival · Open World Survival Craft · Crafting

Dune: Awakening
Shared: Survival · Open World Survival Craft · Exploration

Palworld
Shared: Survival · Open World Survival Craft · Open World

Green Hell
Shared: Survival · Open World Survival Craft · Crafting

Raft
Shared: Survival · Open World Survival Craft · Crafting

Satisfactory
Shared: Crafting · Resource Management · Sandbox

ASTRONEER
Shared: Open World Survival Craft · Survival · Exploration

ICARUS
Shared: Survival · Open World Survival Craft · Crafting

Core Keeper
Shared: Survival · Exploration · Sandbox

Soulmask
Shared: Survival · Open World Survival Craft · Crafting

Grounded
Shared: Survival · Open World Survival Craft · Crafting