Games like Valley Peaks
Games like Valley Peaks include Slime Rancher, Refunct, Smushi Come Home, Hello Kitty Island Adventure, and A Hat in Time. We matched them by the tags players give Valley Peaks on Steam (Cozy, Exploration, Parkour, Open World, and Platformer): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Exploration · Cute · Open World

Refunct
Shared: Parkour · First-Person · Platformer

Smushi Come Home
Shared: Open World · Exploration · Cute

Hello Kitty Island Adventure
Shared: Cozy · Open World · Exploration

A Hat in Time
Shared: Cute · Platformer · Exploration

Mirror's Edge™
Shared: Parkour · Exploration · First-Person

A Short Hike
Shared: Exploration · Cute · Open World

Valley
Shared: Exploration · Parkour · First-Person

Little Kitty, Big City
Shared: Exploration · Cozy · Cute

Slime Rancher 2
Shared: Cute · Open World · First-Person

The Witness
Shared: Exploration · Open World · First-Person

Firewatch
Shared: Exploration · Atmospheric · First-Person

Mirror's Edge™ Catalyst
Shared: Parkour · Open World · First-Person

Fallout 4
Shared: Open World · Exploration · First-Person

Alba: A Wildlife Adventure
Shared: Cozy · Exploration · Nature

Big Walk
Shared: Exploration · Open World · First-Person

A Story About My Uncle
Shared: Parkour · First-Person · Platformer

The Long Dark
Shared: Exploration · Open World · First-Person

Grow Home
Shared: Open World · Exploration · Parkour

Rain World
Shared: Exploration · Atmospheric · Platformer

Grow Up
Shared: Exploration · Open World · Cute

TOEM: A Photo Adventure
Shared: Cozy · Exploration · Cute

Supraland
Shared: Exploration · First-Person · Open World

Cozy Caravan
Shared: Cozy · Exploration · Cute