Games like Beyond The Underworld
Games like Beyond The Underworld include Journey, GRIS, ABZU, A Short Hike, and Firewatch. We matched them by the tags players give Beyond The Underworld on Steam (Adventure, Indie, Early Access, Casual, and Relaxing): closest matches first, and among equally close ones the better-known games.

Journey
Shared: Adventure · Indie · Relaxing

GRIS
Shared: Indie · Adventure · Great Soundtrack

ABZU
Shared: Relaxing · Adventure · Great Soundtrack

A Short Hike
Shared: Adventure · Indie · Relaxing

Firewatch
Shared: Adventure · Indie · Exploration

AER Memories of Old
Shared: Adventure · Indie · Relaxing

Assemble with Care
Shared: Indie · Casual · Relaxing

Hollow Knight: Silksong
Shared: Indie · Great Soundtrack · Adventure

The First Tree
Shared: Adventure · Indie · Relaxing

What Remains of Edith Finch
Shared: Adventure · Exploration · Indie

Slime Rancher
Shared: Adventure · Exploration · Casual

Gone Home
Shared: Indie · Exploration · Short

Carto
Shared: Indie · Adventure · Relaxing

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Short

Submerged
Shared: Relaxing · Exploration · Adventure

Morphopolis
Shared: Indie · Adventure · Casual

DAVE THE DIVER
Shared: Adventure · Casual · Relaxing

Outer Wilds
Shared: Adventure · Exploration · Great Soundtrack

The Beginner's Guide
Shared: Indie · Adventure · Short

Flower
Shared: Casual · Relaxing · Adventure

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

Donut County
Shared: Indie · Casual · Adventure

To the Moon
Shared: Indie · Adventure · Great Soundtrack

OneShot
Shared: Indie · Great Soundtrack · Adventure