Games like William's dad's secret
Games like William's dad's secret include Five Nights at Freddy's, Shift At Midnight, Five Nights at Freddy's: Security Breach, Papers, Please, and The Mortuary Assistant. We matched them by the tags players give William's dad's secret on Steam (3D, Simulation, Retro, Indie, and Horror): closest matches first, and among equally close ones the better-known games.

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

Shift At Midnight
Shared: Horror · Retro · Simulation

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · 3D

Papers, Please
Shared: Simulation · Indie · Singleplayer

The Mortuary Assistant
Shared: Horror · Simulation · Supernatural

Buckshot Roulette
Shared: Horror · Indie · 3D

Feed The Pit
Shared: Indie · Retro · 3D

Firework
Shared: Indie · Horror · Singleplayer

Poppy Playtime
Shared: Horror · Singleplayer · Survival Horror

Escape the Backrooms
Shared: Horror · 3D · Survival Horror

KinitoPET
Shared: Retro · Horror · Indie

MiSide
Shared: 3D · Horror · Singleplayer

Totally Accurate Battle Simulator
Shared: Simulation · Singleplayer · Indie

Choo-Choo Charles
Shared: Horror · Singleplayer · 3D

Five Nights at Freddy's 2
Shared: Horror · Singleplayer · Indie

Five Nights at Freddy's 3
Shared: Horror · Singleplayer · Indie

Baldi's Basics Plus
Shared: Horror · Retro · 3D

Garten of Banban
Shared: Horror · Singleplayer · 3D

Ultimate Custom Night
Shared: Horror · Singleplayer · Survival Horror

Stay Out of the House
Shared: Retro · Indie · Horror

Buddy Simulator 1984
Shared: Retro · Indie · Horror

Scrutinized
Shared: Simulation · Horror · 3D

The Salesman
Shared: Simulation · Retro · Horror

Zoochosis
Shared: 3D · Horror · Simulation