Games like Creepy Forest
Games like Creepy Forest include Firework, Paper Bride, Unheard - Voices of Crime, Sally Face - Episode One, and Return of the Obra Dinn. We matched them by the tags players give Creepy Forest on Steam (Mystery, Thriller, Puzzle Platformer, Casual, and Puzzle): closest matches first, and among equally close ones the better-known games.

Firework
Shared: Mystery · Puzzle · 2D

Paper Bride
Shared: Mystery · Puzzle · Thriller

Unheard - Voices of Crime
Shared: Thriller · Mystery · Detective

Sally Face - Episode One
Shared: Story Rich · Mystery · Puzzle

Return of the Obra Dinn
Shared: Mystery · Puzzle · Detective

The Rewinder
Shared: Mystery · Puzzle · 2D

The Case of the Golden Idol
Shared: Mystery · Puzzle · Detective

Cube Escape Collection
Shared: Mystery · Puzzle · Story Rich

Sherlock Holmes: The Devil's Daughter
Shared: Mystery · Thriller · Puzzle

Murders on the Yangtze River
Shared: Puzzle · Mystery · Detective

Little Nightmares
Shared: Puzzle Platformer · Atmospheric · Puzzle

LIMBO
Shared: Puzzle Platformer · Puzzle · 2D

Sanfu
Shared: Mystery · Puzzle · 2D

Little Nightmares II
Shared: Puzzle · Story Rich · Puzzle Platformer

The Room
Shared: Mystery · Puzzle · Atmospheric

Poppy Playtime
Shared: Puzzle · Mystery · Singleplayer

The Incident at Galley House
Shared: Mystery · Puzzle · Story Rich

Outer Wilds
Shared: Mystery · Story Rich · Puzzle

The Room Two
Shared: Mystery · Puzzle · Atmospheric

The White Door
Shared: Puzzle · Mystery · Detective

The Painscreek Killings
Shared: Mystery · Puzzle · Detective

Danganronpa 2: Goodbye Despair
Shared: Mystery · Detective · Story Rich

Murdered: Soul Suspect
Shared: Mystery · Detective · Supernatural

DISTRAINT: Deluxe Edition
Shared: 2D · Story Rich · Psychological Horror