Games like Profectus
Games like Profectus include Satisfactory, The Long Dark, The Forest, Raft, and The Last Caretaker. We matched them by the tags players give Profectus on Steam (Simulation, Adventure, Crafting, Base Building, and Sandbox): closest matches first, and among equally close ones the better-known games.

Satisfactory
Shared: Base Building · Crafting · Open World

The Long Dark
Shared: Open World · Adventure · Crafting

The Forest
Shared: Crafting · Adventure · Open World

Raft
Shared: Crafting · Open World · Base Building

The Last Caretaker
Shared: Crafting · Base Building · Sandbox

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

Scrap Mechanic
Shared: Sandbox · Crafting · Open World

Don't Starve
Shared: Crafting · Adventure · Sandbox

Subnautica
Shared: Crafting · Open World · Adventure

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

Rust
Shared: Crafting · Open World · Adventure

Enshrouded
Shared: Base Building · Open World · Crafting

Slime Rancher
Shared: Adventure · Open World · Exploration

Terraria
Shared: Sandbox · Adventure · Crafting

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

Green Hell
Shared: Crafting · Open World · Base Building

Core Keeper
Shared: Open World · Crafting · Sandbox

Don't Starve Together
Shared: Adventure · Crafting · Open World

Palworld
Shared: Open World · Crafting · Adventure

Mist Survival
Shared: Base Building · Open World · Crafting

No Man's Sky
Shared: Open World · Adventure · Exploration

Stranded Deep
Shared: Crafting · Adventure · Open World

Valheim
Shared: Open World · Crafting · Base Building

Once Human
Shared: Open World · Crafting · Adventure