Games like Loss
Games like Loss include Poppy Playtime, Outlast, Bendy and the Ink Machine, Phasmophobia, and Garten of Banban. We matched them by the tags players give Loss on Steam (Horror, First-Person, Puzzle, Dark, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · First-Person

Outlast
Shared: Horror · First-Person · Survival Horror

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

Phasmophobia
Shared: Horror · First-Person · Psychological Horror

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

SOMA
Shared: Horror · Dark · Psychological Horror

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

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

Amnesia: The Dark Descent
Shared: Horror · Puzzle · First-Person

Little Nightmares II
Shared: Horror · Puzzle · Singleplayer

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

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

Pacify
Shared: Horror · First-Person · Survival Horror

Inside the Backrooms
Shared: Horror · Puzzle · Survival Horror

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

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

Resident Evil Village
Shared: Horror · First-Person · Survival Horror

Little Nightmares
Shared: Horror · Singleplayer · Dark

Amnesia: Rebirth
Shared: First-Person · Puzzle · Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · First-Person · Singleplayer

Buckshot Roulette
Shared: Horror · Dark · First-Person

Escape the Backrooms
Shared: Horror · First-Person · Psychological Horror

MADiSON
Shared: Horror · Dark · First-Person

Firework
Shared: Horror · Puzzle · Singleplayer