Games like Total Chaos
Games like Total Chaos include Outlast, The Forest, Darkwood, Lethal Company, and Ready or Not. We matched them by the tags players give Total Chaos on Steam (Action, Psychological Horror, Horror, Adventure, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Psychological Horror · Atmospheric

The Forest
Shared: Horror · Adventure · Action

Darkwood
Shared: Horror · Psychological Horror · Action

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

Ready or Not
Shared: Horror · FPS · Psychological Horror

SOMA
Shared: Psychological Horror · Horror · Atmospheric

SILENT HILL: Townfall
Shared: Action · Horror · Psychological Horror

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

Zort
Shared: Horror · Psychological Horror · Action

Resident Evil Requiem
Shared: Horror · Action · FPS

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Atmospheric

Metro Exodus
Shared: Action · FPS · Atmospheric

Poppy Playtime
Shared: Horror · Psychological Horror · First-Person

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

SILENT HILL f
Shared: Psychological Horror · Horror · Action

METRO 2033 Redux
Shared: Action · Horror · Atmospheric

Atomic Heart
Shared: Action · Adventure · Horror

The Outlast Trials
Shared: Horror · Psychological Horror · Action

Little Nightmares II
Shared: Horror · Adventure · Psychological Horror

We Happy Few
Shared: Action · Adventure · Psychological Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Action · Adventure

Pacify
Shared: Horror · Psychological Horror · Exploration

METRO Last Light Redux
Shared: Action · Atmospheric · Horror

In Sound Mind
Shared: Psychological Horror · Horror · Action