Games like Befriended Curse
Games like Befriended Curse include Phasmophobia, DON'T SCREAM, Layers of Fear (2016), Summer of '58, and Mouthwashing. We matched them by the tags players give Befriended Curse on Steam (Horror, Supernatural, Atmospheric, Psychological Horror, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

DON'T SCREAM
Shared: Horror · Psychological Horror · Atmospheric

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

Summer of '58
Shared: Horror · Atmospheric · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

SOMA
Shared: Horror · Atmospheric · Psychological Horror

Outlast
Shared: Horror · Atmospheric · First-Person

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

Firewatch
Shared: Atmospheric · Walking Simulator · First-Person

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Walking Simulator

Still Wakes the Deep
Shared: Horror · Psychological Horror · Walking Simulator

Visage
Shared: Horror · Psychological Horror · Atmospheric

Fears to Fathom - Ironbark Lookout
Shared: Horror · Atmospheric · Psychological Horror

The Mortuary Assistant
Shared: Horror · Supernatural · Atmospheric

MiSide
Shared: Psychological Horror · Horror · First-Person

Five Nights at Freddy's
Shared: Horror · Psychological Horror · First-Person

Psalm 5:9-13
Shared: Horror · Psychological Horror · Walking Simulator

No, I'm not a Human
Shared: Horror · Psychological Horror · Atmospheric

Welcome to Kowloon
Shared: Horror · Atmospheric · Psychological Horror

Lethal Company
Shared: Horror · First-Person · Psychological Horror

Pacify
Shared: Horror · Psychological Horror · Supernatural

From The Darkness
Shared: Horror · Psychological Horror · First-Person

Garten of Banban
Shared: Horror · Psychological Horror · First-Person