Games like The book by the blue
Games like The book by the blue include Buckshot Roulette, Poppy Playtime, Bendy and the Ink Machine, Monument Valley, and Little Nightmares II. We matched them by the tags players give The book by the blue on Steam (Casual, Horror, Exploration, Dark, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Buckshot Roulette
Shared: Horror · Dark · Singleplayer

Poppy Playtime
Shared: Horror · Singleplayer · Dark

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

Monument Valley
Shared: Casual · Singleplayer · Exploration

Little Nightmares II
Shared: Horror · Singleplayer · Dark

Little Nightmares
Shared: Horror · Singleplayer · Dark

The Exit 8
Shared: Exploration · Horror · Puzzle

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

Moncage
Shared: Casual · Singleplayer · Puzzle

Sizeable
Shared: Casual · Exploration · Singleplayer

Garten of Banban
Shared: Horror · Singleplayer · Dark

SOMA
Shared: Horror · Dark · Exploration

Ultimate Custom Night
Shared: Horror · Singleplayer · Dark

Escape the Backrooms
Shared: Horror · Exploration · Singleplayer

Liars Bar
Shared: Casual · Indie · 3D

Pacify
Shared: Horror · Exploration · Dark

Shipwrecked 64
Shared: Horror · Exploration · 3D

Bloons TD 6
Shared: Singleplayer · Casual · Strategy

LIMBO
Shared: Dark · Indie · Horror

Inscryption
Shared: Horror · Dark · Puzzle

INSIDE
Shared: Horror · Dark · Singleplayer

FIVE NIGHTS AT FREDDY'S: HELP WANTED
Shared: Horror · Singleplayer · Dark

Garten of Banban 2
Shared: Horror · Singleplayer · Dark

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