Games like Chill & Thrill - Deep Down
Games like Chill & Thrill - Deep Down include Detroit: Become Human, Firewatch, The Stanley Parable, Road 96, and Heavy Rain. We matched them by the tags players give Chill & Thrill - Deep Down on Steam (Thriller, Multiple Endings, Singleplayer, Emotional, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

Detroit: Become Human
Shared: Multiple Endings · Singleplayer · Choices Matter

Firewatch
Shared: Atmospheric · Walking Simulator · Singleplayer

The Stanley Parable
Shared: Walking Simulator · First-Person · Multiple Endings

Road 96
Shared: First-Person · Multiple Endings · Choices Matter

Heavy Rain
Shared: Multiple Endings · Thriller · Choices Matter

No, I'm not a Human
Shared: Singleplayer · Choices Matter · Multiple Endings

The Beginner's Guide
Shared: Walking Simulator · Atmospheric · Singleplayer

Before Your Eyes
Shared: Emotional · Singleplayer · Walking Simulator

What Remains of Edith Finch
Shared: Walking Simulator · Atmospheric · Singleplayer

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

Undertale
Shared: Multiple Endings · Choices Matter · Singleplayer

The Witcher 3: Wild Hunt — Remastered
Shared: Atmospheric · Singleplayer · Adventure

The Casting of Frank Stone™
Shared: Multiple Endings · Singleplayer · Choices Matter

The Henry Stickmin Collection
Shared: Multiple Endings · Singleplayer · Choices Matter

Toilet Chronicles
Shared: Multiple Endings · Singleplayer · First-Person

Life is Strange: True Colors
Shared: Multiple Endings · Choices Matter · Emotional

Cairn
Shared: Singleplayer · Stylized · Atmospheric

The Quarry
Shared: Multiple Endings · Choices Matter · Singleplayer

Oxenfree
Shared: Atmospheric · Choices Matter · Singleplayer

Love Is All Around
Shared: Singleplayer · Multiple Endings · First-Person

Somerville
Shared: Emotional · Atmospheric · Multiple Endings

Fears to Fathom - Ironbark Lookout
Shared: Thriller · Atmospheric · Walking Simulator

Millennium Dream
Shared: Emotional · Walking Simulator · Adventure

A Perfect Day
Shared: Singleplayer · Multiple Endings · Atmospheric