Games like 天亮之后
Games like 天亮之后 include Poppy Playtime, Firewatch, Fears to Fathom - Ironbark Lookout, MiSide, and Layers of Fear (2016). We matched them by the tags players give 天亮之后 on Steam (Thriller, Comedy, Psychological Horror, Horror, and First-Person): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Firewatch
Shared: Walking Simulator · First-Person · Singleplayer

Fears to Fathom - Ironbark Lookout
Shared: Psychological Horror · Horror · Thriller

MiSide
Shared: Psychological Horror · Horror · First-Person

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

Mouthwashing
Shared: Psychological Horror · Horror · Thriller

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

The Stanley Parable
Shared: Comedy · First-Person · Walking Simulator

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

Outlast
Shared: Horror · First-Person · Psychological Horror

Fears to Fathom® - Scratch Creek
Shared: Horror · Psychological Horror · First-Person

The Park®
Shared: Psychological Horror · Horror · First-Person

Still Wakes the Deep
Shared: Psychological Horror · Horror · First-Person

Lethal Company
Shared: Horror · First-Person · Psychological Horror

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

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

SOMA
Shared: Psychological Horror · Horror · First-Person

Amnesia: A Machine For Pigs
Shared: Horror · Walking Simulator · Psychological Horror

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Horror · Singleplayer

Summer of '58
Shared: Thriller · Horror · Psychological Horror

Fears to Fathom - Woodbury Getaway
Shared: Psychological Horror · Horror · First-Person

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

The Exit 8
Shared: Horror · Psychological Horror · Walking Simulator

Five Nights at Freddy's
Shared: Horror · Psychological Horror · Singleplayer