Games like Fragmented World
Games like Fragmented World include Poppy Playtime, Little Nightmares II, Sally Face - Episode One, Little Nightmares, and Buckshot Roulette. We matched them by the tags players give Fragmented World on Steam (Adventure, Puzzle, Horror, Singleplayer, and First-Person): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · Singleplayer

Little Nightmares II
Shared: Adventure · Horror · Puzzle

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

Little Nightmares
Shared: Adventure · Horror · Singleplayer

Buckshot Roulette
Shared: Horror · Dark · First-Person

Fran Bow
Shared: Puzzle · Adventure · Horror

MiSide
Shared: Horror · Psychological Horror · First-Person

Bendy and the Ink Machine
Shared: Horror · Puzzle · Singleplayer

SOMA
Shared: Horror · Psychological Horror · Dark

Layers of Fear (2016)
Shared: Horror · Psychological Horror · First-Person

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

Amnesia: Rebirth
Shared: Puzzle · First-Person · Adventure

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

Outer Wilds
Shared: Adventure · Puzzle · Story Rich

Inside the Backrooms
Shared: Horror · Puzzle · Adventure

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Adventure

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

Outlast
Shared: Horror · First-Person · Singleplayer

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

Superliminal
Shared: Puzzle · First-Person · Singleplayer

DISTRAINT: Deluxe Edition
Shared: Horror · Adventure · Psychological Horror

Garten of Banban 2
Shared: Horror · Puzzle · Singleplayer

The Cat Lady
Shared: Adventure · Horror · Psychological Horror

Firewatch
Shared: Adventure · First-Person · Singleplayer