Games like Beneath the Cardboard: Be Happy
Games like Beneath the Cardboard: Be Happy include The Long Dark, The Forest, Subnautica 2, Subnautica, and Sons Of The Forest. We matched them by the tags players give Beneath the Cardboard: Be Happy on Steam (Survival, Exploration, Snow, Walking Simulator, and 3D): closest matches first, and among equally close ones the better-known games.

The Long Dark
Shared: Survival · Exploration · Atmospheric

The Forest
Shared: Survival · Exploration · First-Person

Subnautica 2
Shared: Survival · Exploration · First-Person

Subnautica
Shared: Survival · Exploration · Horror

Sons Of The Forest
Shared: Survival · Exploration · First-Person

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

Firewatch
Shared: Walking Simulator · Atmospheric · Exploration

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Atmospheric

Terraria
Shared: Survival · Sandbox · Exploration

Outlast
Shared: First-Person · Survival · Atmospheric

Pacific Drive
Shared: Survival · Exploration · Atmospheric

The Exit 8
Shared: Exploration · Walking Simulator · First-Person

We Happy Few
Shared: Survival · First-Person · Adventure

Stranded Deep
Shared: Survival · Exploration · First-Person

Fallout 4
Shared: Exploration · Atmospheric · First-Person

Near Death
Shared: Survival · Exploration · First-Person

Subnautica: Below Zero
Shared: Survival · Exploration · Horror

Cairn
Shared: Exploration · Survival · Atmospheric

PANELKI
Shared: Snow · Atmospheric · First-Person

Rust
Shared: Survival · Sandbox · First-Person

The Last Caretaker
Shared: Survival · First-Person · Sandbox

Scanner Sombre
Shared: Exploration · Walking Simulator · Atmospheric

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

The Witness
Shared: Exploration · First-Person · Walking Simulator