Games like Yume Tenshi
Games like Yume Tenshi include Firewatch, Slime Rancher, A Short Hike, Journey, and ABZU. We matched them by the tags players give Yume Tenshi on Steam (Adventure, Indie, Casual, Violent, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Indie

Slime Rancher
Shared: Adventure · Exploration · Colorful

A Short Hike
Shared: Adventure · Indie · Exploration

Journey
Shared: Adventure · Indie · Exploration

ABZU
Shared: Adventure · Exploration · Casual

The Witness
Shared: Indie · Exploration · Adventure

Broken Reality
Shared: Adventure · Indie · Surreal

Moncage
Shared: Indie · Casual · Adventure

NaissanceE
Shared: Indie · Adventure · Exploration

The Beginner's Guide
Shared: Indie · Walking Simulator · Adventure

DAVE THE DIVER
Shared: Adventure · Casual · Exploration

OneShot
Shared: Indie · Adventure · Pixel Graphics

Hylics
Shared: Indie · Surreal · Adventure

Antichamber
Shared: Indie · Surreal · Adventure

The First Tree
Shared: Adventure · Indie · Walking Simulator

Jazzpunk: Director's Cut
Shared: Indie · Adventure · Surreal

Fatum Betula
Shared: Adventure · Indie · Casual

GRIS
Shared: Indie · Adventure · Atmospheric

Spirit of the North
Shared: Adventure · Casual · Exploration

The Stanley Parable
Shared: Indie · Walking Simulator · Adventure

Reventure
Shared: Adventure · Indie · Pixel Graphics

FEZ
Shared: Indie · Adventure · Exploration

AER Memories of Old
Shared: Adventure · Indie · Exploration

Obduction
Shared: Adventure · Indie · Exploration