Games like The Old Man’s Will
Games like The Old Man’s Will include Five Nights at Freddy's, Outlast, Five Nights at Freddy's 2, Poppy Playtime, and Ultimate Custom Night. We matched them by the tags players give The Old Man’s Will on Steam (Indie, Horror, Singleplayer, Survival Horror, and Simulation): closest matches first, and among equally close ones the better-known games.

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

Outlast
Shared: Horror · Survival Horror · Singleplayer

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

Poppy Playtime
Shared: Horror · Singleplayer · Survival Horror

Ultimate Custom Night
Shared: Horror · Singleplayer · Survival Horror

Five Nights at Freddy's 4
Shared: Horror · Singleplayer · Survival Horror

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

Five Nights at Freddy's: Sister Location
Shared: Horror · Singleplayer · Survival Horror

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Slender: The Arrival
Shared: Horror · Indie · Survival Horror

SOMA
Shared: Horror · Psychological Horror · Survival Horror

Amnesia: The Bunker
Shared: Horror · Survival Horror · Singleplayer

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Singleplayer

Visage
Shared: Horror · Survival Horror · Psychological Horror

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

DEVOUR
Shared: Horror · Survival Horror · Psychological Horror

Resident Evil Village
Shared: Horror · Survival Horror · Singleplayer

MiSide
Shared: Horror · Psychological Horror · Singleplayer

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

Bendy and the Ink Machine
Shared: Horror · Singleplayer · First-Person

The Outlast Trials
Shared: Horror · Survival Horror · Psychological Horror

Lobotomy Corporation | Monster Management Simulation
Shared: Horror · Psychological Horror · Difficult

Garten of Banban
Shared: Horror · Singleplayer · Psychological Horror

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Indie