Games like Hiraeth
Games like Hiraeth include The Long Dark, The Forest, Subnautica, Rust, and Fallout 4. We matched them by the tags players give Hiraeth on Steam (Open World Survival Craft, Survival, Atmospheric, First-Person, and Exploration): closest matches first, and among equally close ones the better-known games.

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

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

Subnautica
Shared: Open World Survival Craft · Survival · Exploration

Rust
Shared: Survival · Open World Survival Craft · Crafting

Fallout 4
Shared: Exploration · Open World · Atmospheric

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

Terraria
Shared: Open World Survival Craft · Survival · Sandbox

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

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Survival · Atmospheric · Open World

Stranded Deep
Shared: Open World Survival Craft · Survival · First-Person

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

Subnautica: Below Zero
Shared: Open World Survival Craft · Survival · Exploration

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

Far Cry® Primal
Shared: Survival · Open World Survival Craft · Open World

Sons Of The Forest
Shared: Survival · Open World · Crafting

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

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

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

Raft
Shared: Survival · Open World Survival Craft · Crafting

Fallout: New Vegas
Shared: Open World · Exploration · First-Person

Metro Exodus
Shared: Atmospheric · Open World · Singleplayer

Valheim
Shared: Open World Survival Craft · Survival · Open World

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

Ancestors: The Humankind Odyssey
Shared: Open World Survival Craft · Survival · Exploration