Games like The Black Route
Games like The Black Route include Five Nights at Freddy's: Security Breach, Little Nightmares, INSIDE, Five Nights at Freddy's: Into the Pit, and Little Nightmares II. We matched them by the tags players give The Black Route on Steam (Horror, Singleplayer, Atmospheric, Linear, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Multiple Endings

Little Nightmares
Shared: Horror · Atmospheric · Singleplayer

INSIDE
Shared: Atmospheric · Horror · Singleplayer

Five Nights at Freddy's: Into the Pit
Shared: Horror · Singleplayer · Pixel Graphics

Little Nightmares II
Shared: Horror · Singleplayer · Atmospheric

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

OneShot
Shared: Atmospheric · Pixel Graphics · Singleplayer

MiSide
Shared: Horror · Singleplayer · Atmospheric

Papers, Please
Shared: Singleplayer · Pixel Graphics · Multiple Endings

Outlast
Shared: Horror · Atmospheric · Singleplayer

Stray
Shared: Atmospheric · Singleplayer · Adventure

Tales of the Black Forest
Shared: Horror · Pixel Graphics · Atmospheric

Poppy Playtime
Shared: Horror · Singleplayer · Atmospheric

DISTRAINT: Deluxe Edition
Shared: Horror · Pixel Graphics · Atmospheric

The Test
Shared: Multiple Endings · Singleplayer · Pixel Graphics

OMORI
Shared: Horror · Pixel Graphics · Multiple Endings

Bramble: The Mountain King
Shared: Horror · Atmospheric · Singleplayer

SILENT HILL 2
Shared: Horror · Atmospheric · Singleplayer

Firewatch
Shared: Atmospheric · Singleplayer · Adventure

House
Shared: Horror · Singleplayer · Pixel Graphics

Happy's Humble Burger Farm
Shared: Horror · Atmospheric · Pixel Graphics

IMSCARED
Shared: Horror · Singleplayer · Pixel Graphics

DISTRAINT 2
Shared: Horror · Atmospheric · Singleplayer

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Singleplayer · Horror