Games like Shattered Lights
Games like Shattered Lights include Poppy Playtime, Ultimate Custom Night, Outlast, Resident Evil 7 Biohazard, and Dark Deception. We matched them by the tags players give Shattered Lights on Steam (Free to Play, Horror, Indie, Psychological Horror, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Free to Play · Singleplayer

Ultimate Custom Night
Shared: Free to Play · Horror · Singleplayer

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Resident Evil 7 Biohazard
Shared: Horror · VR · Atmospheric

Dark Deception
Shared: Free to Play · Horror · Psychological Horror

Five Nights at Freddy's
Shared: Horror · Indie · Psychological Horror

Garten of Banban
Shared: Horror · VR · Psychological Horror

Slender: The Arrival
Shared: Horror · Indie · Psychological Horror

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

DEVOUR
Shared: Horror · Psychological Horror · VR

Phasmophobia
Shared: Horror · Psychological Horror · VR

Outlast 2
Shared: Horror · Psychological Horror · Atmospheric

Visage
Shared: Horror · Psychological Horror · Indie

Five Nights at Freddy's 2
Shared: Horror · Psychological Horror · Indie

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Resident Evil Village
Shared: Horror · Singleplayer · Survival Horror

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Horror · VR · Singleplayer

Mouthwashing
Shared: Horror · Psychological Horror · Indie

Rental
Shared: Free to Play · Horror · Indie

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

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

Psychopomp
Shared: Horror · Free to Play · Psychological Horror

Firewatch
Shared: Atmospheric · Walking Simulator · Indie

From The Darkness
Shared: Horror · Indie · Psychological Horror