Games like The Reunion
Games like The Reunion include Poppy Playtime, Outlast, Fears to Fathom - Woodbury Getaway, Escape the Backrooms, and Dark Deception. We matched them by the tags players give The Reunion on Steam (First-Person, Adventure, 1990's, Singleplayer, and Horror): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Singleplayer · First-Person · Horror

Outlast
Shared: First-Person · Horror · Psychological Horror

Fears to Fathom - Woodbury Getaway
Shared: Adventure · First-Person · Psychological Horror

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

Dark Deception
Shared: First-Person · Horror · Singleplayer

MiSide
Shared: First-Person · Psychological Horror · Horror

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

Layers of Fear (2016)
Shared: First-Person · Horror · Psychological Horror

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

Blair Witch
Shared: Adventure · First-Person · Horror

Firewatch
Shared: Adventure · First-Person · Singleplayer

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

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

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

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

Getting Over It with Bennett Foddy
Shared: Singleplayer · Psychological Horror · Horror

Little Nightmares II
Shared: Adventure · Horror · Singleplayer

Ready or Not
Shared: Singleplayer · First-Person · Horror

Lethal Company
Shared: First-Person · Horror · Psychological Horror

Penumbra Overture
Shared: Adventure · First-Person · Horror

The Death | Thần Trùng
Shared: Horror · Adventure · Psychological Horror

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

Little Nightmares
Shared: Adventure · Horror · Singleplayer

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