Games like The Curiosity
Games like The Curiosity include Five Nights at Freddy's: Security Breach, Escape the Backrooms, The Exit 8, Outlast, and Five Nights at Freddy's: Secret of the Mimic. We matched them by the tags players give The Curiosity on Steam (Horror, Stealth, Casual, Exploration, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's: Security Breach
Shared: Horror · Stealth · Multiple Endings

Escape the Backrooms
Shared: Horror · Exploration · Psychological Horror

The Exit 8
Shared: Horror · Exploration · Walking Simulator

Outlast
Shared: Horror · First-Person · Psychological Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Adventure · Exploration

Fears to Fathom® - Scratch Creek
Shared: Horror · Casual · Adventure

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

The Beast Inside
Shared: Horror · Adventure · First-Person

Firewatch
Shared: Adventure · Walking Simulator · Exploration

Scanner Sombre
Shared: Horror · Exploration · Walking Simulator

Lethal Company
Shared: Horror · Exploration · First-Person

Fears to Fathom - Woodbury Getaway
Shared: Horror · Casual · Adventure

[Chillas Art] Night Delivery
Shared: Horror · Casual · Adventure

SILENT HILL: Townfall
Shared: Horror · Adventure · Exploration

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Gore

The Death | Thần Trùng
Shared: Horror · Casual · Adventure

R.E.P.O.
Shared: Horror · Stealth · 3D

SOMA
Shared: Horror · Exploration · Psychological Horror

The Forest
Shared: Horror · Adventure · Exploration

Dead by Daylight
Shared: Horror · Stealth · Gore

[Chillas Art] The Convenience Store
Shared: Horror · Casual · Adventure

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Exploration

Layers of Fear (2016)
Shared: Horror · Walking Simulator · Psychological Horror

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Gore