Games like Finding the Soul Orb
Games like Finding the Soul Orb include Outer Wilds, Firewatch, Fallout 4, BioShock Infinite, and Half-Life 2. We matched them by the tags players give Finding the Soul Orb on Steam (Action, Casual, Adventure, Puzzle, and Exploration): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Exploration · Adventure · Mystery

Firewatch
Shared: Adventure · Atmospheric · First-Person

Fallout 4
Shared: Exploration · Adventure · Action

BioShock Infinite
Shared: Action · First-Person · Adventure

Half-Life 2
Shared: Action · Adventure · FPS

Tomb Raider Game of the Year
Shared: Action · Adventure · Exploration

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

Rise of the Tomb Raider™
Shared: Action · Adventure · Exploration

Metro Exodus
Shared: Action · Atmospheric · Singleplayer

Red Dead Redemption 2
Shared: Action · Adventure · Story Rich

Blue Prince
Shared: Puzzle · Exploration · Mystery

The Room
Shared: Puzzle · Adventure · Mystery

Black Mesa
Shared: Action · First-Person · FPS

Ori and the Will of the Wisps
Shared: Action · Adventure · Atmospheric

The Witness
Shared: Puzzle · Exploration · First-Person

The Talos Principle
Shared: Puzzle · First-Person · Atmospheric

Riven
Shared: Adventure · Puzzle · Exploration

Call of the Sea
Shared: Adventure · Puzzle · First-Person

Fallout: New Vegas
Shared: Action · Exploration · Adventure

Atomic Heart
Shared: Adventure · Action · Puzzle

Stray
Shared: Adventure · Atmospheric · Exploration

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Atmospheric · Exploration · FPS

METRO Last Light Redux
Shared: Action · Atmospheric · First-Person

The Room 4: Old Sins
Shared: Puzzle · Adventure · Mystery