Games like 昼夜事件
Games like 昼夜事件 include Poppy Playtime, Sally Face - Episode One, Firework, Little Nightmares, and Little Nightmares II. We matched them by the tags players give 昼夜事件 on Steam (Horror, Mystery, Dark, 2D, and Adventure): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Dark · Singleplayer

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

Firework
Shared: Horror · Mystery · 2D

Little Nightmares
Shared: Horror · Adventure · Dark

Little Nightmares II
Shared: Horror · Adventure · Dark

LIMBO
Shared: Dark · 2D · Indie

DISTRAINT: Deluxe Edition
Shared: Horror · 2D · Adventure

Look Outside
Shared: Horror · RPG · Adventure

Tales of the Black Forest
Shared: Horror · RPG · Adventure

The Witch's House MV
Shared: Horror · 2D · Adventure

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

Five Nights at Freddy's: Into the Pit
Shared: Horror · 2D · Adventure

The Room Two
Shared: Mystery · Horror · Adventure

The Room
Shared: Mystery · Adventure · Horror

Rusty Lake Paradise
Shared: Horror · Adventure · Mystery

The Room Three
Shared: Mystery · Adventure · Indie

Sanfu
Shared: Mystery · 2D · RPG

The Hex
Shared: Mystery · Dark · Indie

镇邪
Shared: Horror · Mystery · Adventure

INSIDE
Shared: Horror · Dark · Adventure

Cat in the Box
Shared: Horror · Mystery · Adventure

Firewatch
Shared: Adventure · Mystery · Singleplayer

Aooni
Shared: Horror · 2D · RPG

Darkwood
Shared: Horror · Adventure · Dark