Games like Occupy Mars: The Game
Games like Occupy Mars: The Game include Valheim, The Planet Crafter, ICARUS, Raft, and Satisfactory. We matched them by the tags players give Occupy Mars: The Game on Steam (Open World Survival Craft, Base Building, Survival, Crafting, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

Valheim
Shared: Open World Survival Craft · Survival · Online Co-Op

The Planet Crafter
Shared: Open World Survival Craft · Base Building · Survival

ICARUS
Shared: Open World Survival Craft · Survival · Base Building

Raft
Shared: Open World Survival Craft · Survival · Crafting

Satisfactory
Shared: Base Building · Crafting · Open World

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

Rust
Shared: Survival · Crafting · Open World Survival Craft

Terraria
Shared: Open World Survival Craft · Survival · Sandbox

Green Hell
Shared: Open World Survival Craft · Survival · Online Co-Op

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

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

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

Subnautica
Shared: Open World Survival Craft · Survival · Open World

Abiotic Factor
Shared: Open World Survival Craft · Survival · Base Building

Dune: Awakening
Shared: Open World Survival Craft · Survival · Base Building

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

Once Human
Shared: Survival · Open World · Open World Survival Craft

Grounded
Shared: Survival · Open World Survival Craft · Base Building

ASTRONEER
Shared: Open World Survival Craft · Survival · Open World

V Rising
Shared: Survival · Base Building · Open World

Enshrouded
Shared: Base Building · Survival · Open World

Windrose
Shared: Open World Survival Craft · Survival · Online Co-Op

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

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