Games like [Nightmare Files] Clap Clap
Games like [Nightmare Files] Clap Clap include Poppy Playtime, Mouthwashing, Layers of Fear (2016), Outlast, and Firewatch. We matched them by the tags players give [Nightmare Files] Clap Clap on Steam (Horror, Free to Play, Psychological Horror, Adventure, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Free to Play · Singleplayer

Mouthwashing
Shared: Horror · Psychological Horror · Atmospheric

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Atmospheric

Outlast
Shared: Horror · Psychological Horror · Atmospheric

Firewatch
Shared: Adventure · Atmospheric · Walking Simulator

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Little Nightmares
Shared: Horror · Adventure · Atmospheric

What Remains of Edith Finch
Shared: Atmospheric · Adventure · Walking Simulator

Sally Face - Episode One
Shared: Psychological Horror · Horror · Adventure

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

Ultimate Custom Night
Shared: Horror · Free to Play · Singleplayer

Dark Deception
Shared: Horror · Free to Play · Psychological Horror

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Outlast 2
Shared: Horror · Psychological Horror · Singleplayer

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Psychological Horror

Still Wakes the Deep
Shared: Horror · Psychological Horror · Atmospheric

Garten of Banban
Shared: Horror · Psychological Horror · Singleplayer

Blair Witch
Shared: Horror · Psychological Horror · Adventure

Visage
Shared: Horror · Psychological Horror · Atmospheric

Stories Untold
Shared: Horror · Adventure · Atmospheric

No one lives under the lighthouse Director's cut
Shared: Horror · Adventure · Atmospheric

ROUTINE
Shared: Psychological Horror · Atmospheric · Singleplayer

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