Games like Éclaircies
Games like Éclaircies include The Long Dark, Slime Rancher, No Man's Sky, The Witness, and Fallout 4. We matched them by the tags players give Éclaircies on Steam (Exploration, Simulation, Roguelite, Philosophical, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

The Long Dark
Shared: Exploration · Open World · Simulation

Slime Rancher
Shared: Exploration · Simulation · Open World

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

The Witness
Shared: Exploration · Open World · First-Person

Fallout 4
Shared: Exploration · Open World · Adventure

Firewatch
Shared: Walking Simulator · Exploration · Adventure

SnowRunner
Shared: Simulation · Exploration · Sandbox

The Forest
Shared: Open World · Exploration · Adventure

Elite Dangerous
Shared: Exploration · Simulation · Open World

Thief Simulator
Shared: Simulation · Open World · First-Person

Steep™
Shared: Simulation · Exploration · Open World

Everything
Shared: Simulation · Philosophical · Exploration

SPORE™
Shared: Simulation · Exploration · Sandbox

Blue Prince
Shared: Exploration · Roguelite · First-Person

EVE Online
Shared: Exploration · Simulation · Open World

Internet Cafe Simulator 2
Shared: Simulation · Exploration · Sandbox

Noita
Shared: Sandbox · Roguelike · Simulation

Core Keeper
Shared: Exploration · Open World · Sandbox

鬼谷八荒 Tale of Immortal
Shared: Simulation · Sandbox · Exploration

SPORE™ Galactic Adventures
Shared: Simulation · Exploration · Sandbox

Don't Starve
Shared: Sandbox · Exploration · Adventure

A Game About Digging A Hole
Shared: Exploration · Simulation · Sandbox

Big Walk
Shared: Exploration · Open World · Adventure

What Remains of Edith Finch
Shared: Exploration · Walking Simulator · First-Person