Games like Don't look back
Games like Don't look back include Poppy Playtime, Outlast, Visage, Layers of Fear (2016), and Five Nights at Freddy's. We matched them by the tags players give Don't look back on Steam (Singleplayer, First-Person, Horror, Walking Simulator, and Dark): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Singleplayer · Horror · First-Person

Outlast
Shared: First-Person · Horror · Singleplayer

Visage
Shared: Horror · First-Person · Singleplayer

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

Five Nights at Freddy's
Shared: Singleplayer · Horror · First-Person

Buckshot Roulette
Shared: Horror · First-Person · Dark

Slender: The Arrival
Shared: Horror · First-Person · Singleplayer

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

From The Darkness
Shared: Horror · First-Person · Dark

Blair Witch
Shared: Horror · First-Person · Adventure

Still Wakes the Deep
Shared: Horror · First-Person · Walking Simulator

Outlast 2
Shared: Horror · First-Person · Singleplayer

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

Firewatch
Shared: Walking Simulator · First-Person · Singleplayer

Ready or Not
Shared: Singleplayer · Horror · First-Person

Among the Sleep - Enhanced Edition
Shared: Horror · First-Person · Singleplayer

Bendy and the Ink Machine
Shared: First-Person · Singleplayer · Horror

Little Nightmares
Shared: Horror · Singleplayer · Dark

Little Nightmares II
Shared: Singleplayer · Horror · Dark

No, I'm not a Human
Shared: Horror · Singleplayer · First-Person

SOMA
Shared: Horror · Dark · First-Person

Bendy and the Dark Revival
Shared: Singleplayer · Horror · First-Person

Amnesia: A Machine For Pigs
Shared: Horror · Walking Simulator · First-Person

MiSide
Shared: Horror · First-Person · Singleplayer