Games like Silence Channel 2
Games like Silence Channel 2 include Poppy Playtime, Outlast, Outlast 2, Resident Evil 7 Biohazard, and SOMA. We matched them by the tags players give Silence Channel 2 on Steam (Horror, Singleplayer, Psychological Horror, First-Person, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Singleplayer · First-Person

Outlast
Shared: Horror · First-Person · Psychological Horror

Outlast 2
Shared: Horror · Psychological Horror · First-Person

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

SOMA
Shared: Horror · Psychological Horror · Dark

Resident Evil Village
Shared: Horror · Singleplayer · Survival Horror

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

Garten of Banban
Shared: Horror · Singleplayer · Psychological Horror

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

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

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

Bendy and the Dark Revival
Shared: Horror · Singleplayer · First-Person

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Darkwood
Shared: Horror · Psychological Horror · Survival Horror

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

Ultimate Custom Night
Shared: Horror · Singleplayer · Survival Horror

Little Nightmares
Shared: Horror · Singleplayer · Dark

Garten of Banban 2
Shared: Horror · Singleplayer · First-Person

The Beast Inside
Shared: Horror · First-Person · Survival Horror

The Forest
Shared: Horror · Survival · Survival Horror

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

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Survival Horror

Slender: The Arrival
Shared: Horror · First-Person · Survival Horror