Games like Sivi's Factory
Games like Sivi's Factory include Poppy Playtime, Ultimate Custom Night, Little Nightmares II, Bendy and the Ink Machine, and Dark Deception. We matched them by the tags players give Sivi's Factory on Steam (Free to Play, Horror, Singleplayer, Puzzle, and Action): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Free to Play · Singleplayer

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

Little Nightmares II
Shared: Horror · Singleplayer · Puzzle

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

Dark Deception
Shared: Free to Play · Horror · Singleplayer

SOMA
Shared: Horror · Psychological Horror · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Puzzle

Garten of Banban
Shared: Horror · Singleplayer · Puzzle

Outlast
Shared: Horror · Singleplayer · First-Person

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

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

Resident Evil 7 Biohazard
Shared: Horror · Singleplayer · First-Person

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

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

We Were Here
Shared: Free to Play · Puzzle · Horror

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

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

MiSide
Shared: Horror · Psychological Horror · Singleplayer

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

Resident Evil Village
Shared: Horror · Singleplayer · Action

In Sound Mind
Shared: Horror · Puzzle · Psychological Horror

Outlast 2
Shared: Horror · Singleplayer · Psychological Horror

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

Amnesia: Rebirth
Shared: Puzzle · Singleplayer · Horror