Games like Sullen: Light is Your Friend
Games like Sullen: Light is Your Friend include Lucius, CARRION, Outlast, Notes of Soul, and Home Sweet Home. We matched them by the tags players give Sullen: Light is Your Friend on Steam (Early Access, Indie, Adventure, Horror, and Gore): closest matches first, and among equally close ones the better-known games.

Lucius
Shared: Adventure · Horror · Gore

CARRION
Shared: Gore · Indie · Horror

Outlast
Shared: Horror · Gore · Adventure

Notes of Soul
Shared: Horror · Adventure · Indie

Home Sweet Home
Shared: Adventure · Horror · Indie

Granny: Chapter Two
Shared: Adventure · Indie · Horror

Little Nightmares
Shared: Horror · Adventure · Indie

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

Irony Of Nightmare
Shared: Early Access · Indie · Horror

The Beast Inside
Shared: Adventure · Horror · Indie

The Forest
Shared: Horror · Adventure · Gore

Detention
Shared: Indie · Horror · Adventure

Fran Bow
Shared: Horror · Adventure · Indie

FAITH: The Unholy Trinity
Shared: Horror · Indie · Gore

Unforgiving - A Northern Hymn
Shared: Indie · Horror · Adventure

Lucius II
Shared: Horror · Gore · Indie

Still Wakes the Deep
Shared: Horror · Gore · Adventure

Neverending Nightmares
Shared: Indie · Horror · Gore

Spooky's Jump Scare Mansion: HD Renovation
Shared: Indie · Horror · Adventure

Kindergarten 2
Shared: Adventure · Gore · Indie

New kind of adventure
Shared: Early Access · Indie · Adventure

Heartbound
Shared: Adventure · Indie · Early Access

Sally Face - Episode One
Shared: Indie · Horror · Adventure

Little Nightmares II
Shared: Adventure · Horror · Indie