Games like The Butterfly Collector
Games like The Butterfly Collector include Tiny Bunny, Outlast 2, Outlast, Resident Evil 7 Biohazard, and Raging Loop. We matched them by the tags players give The Butterfly Collector on Steam (Visual Novel, Word Game, Adventure, Horror, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

Tiny Bunny
Shared: Visual Novel · Horror · Psychological Horror

Outlast 2
Shared: Horror · Psychological Horror · First-Person

Outlast
Shared: Horror · Psychological Horror · First-Person

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

Raging Loop
Shared: Visual Novel · Adventure · Psychological Horror

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Horror · Psychological Horror

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

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Tales of the Black Forest
Shared: Horror · Adventure · Visual Novel

Fran Bow
Shared: Psychological Horror · Horror · Adventure

Poppy Playtime
Shared: Horror · Singleplayer · Psychological Horror

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Psychological Horror · Horror

Resident Evil Village
Shared: Horror · Singleplayer · First-Person

The Medium
Shared: Adventure · Horror · Psychological Horror

What Remains of Edith Finch
Shared: Adventure · First-Person · Singleplayer

Danganronpa V3: Killing Harmony
Shared: Visual Novel · Female Protagonist · Psychological Horror

Blair Witch
Shared: Adventure · Horror · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · First-Person

Still Wakes the Deep
Shared: Horror · Psychological Horror · First-Person

Little Nightmares II
Shared: Adventure · Horror · Singleplayer

Far Away
Shared: Visual Novel · Word Game · Singleplayer

Homicipher
Shared: Visual Novel · Horror · Female Protagonist

Urban Myth Dissolution Center
Shared: Visual Novel · Adventure · Psychological Horror

Little Nightmares
Shared: Horror · Adventure · Singleplayer