Games like Come Inside It's Cold Out !
Games like Come Inside It's Cold Out ! include Firewatch, What Remains of Edith Finch, Outer Wilds, Five Nights at Freddy's: Security Breach, and MiSide. We matched them by the tags players give Come Inside It's Cold Out ! on Steam (Singleplayer, 3D, Indie, Adventure, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Atmospheric · Singleplayer

What Remains of Edith Finch
Shared: Atmospheric · Singleplayer · Adventure

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

Five Nights at Freddy's: Security Breach
Shared: Singleplayer · Horror · 3D

MiSide
Shared: Singleplayer · 3D · First-Person

Poppy Playtime
Shared: Singleplayer · Horror · First-Person

Blue Prince
Shared: Singleplayer · Exploration · Indie

Layers of Fear (2016)
Shared: Singleplayer · Atmospheric · Horror

Outlast
Shared: Singleplayer · Atmospheric · First-Person

Little Nightmares
Shared: Singleplayer · Adventure · Atmospheric

Gone Home
Shared: Indie · Atmospheric · Exploration

Stray
Shared: Singleplayer · Adventure · Atmospheric

Escape the Backrooms
Shared: Horror · 3D · Adventure

SOMA
Shared: Atmospheric · Horror · Singleplayer

Amnesia: A Machine For Pigs
Shared: Atmospheric · Horror · Singleplayer

Garten of Banban
Shared: Singleplayer · 3D · Horror

PEAK
Shared: Adventure · 3D · Exploration

Scanner Sombre
Shared: Exploration · Adventure · Atmospheric

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · 3D · First-Person

Fallout 4
Shared: Singleplayer · Adventure · Exploration

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Singleplayer · Female Protagonist

Hollow Knight: Silksong
Shared: Indie · Singleplayer · Exploration

The Long Dark
Shared: Singleplayer · Atmospheric · Exploration

No, I'm not a Human
Shared: Singleplayer · Indie · Horror