Games like The orb
Games like The orb include The Room 4: Old Sins, Escape Simulator, The Room Three, Portal 2, and The Room. We matched them by the tags players give The orb on Steam (Puzzle, Adventure, Logic, Escape Room, and Cozy): closest matches first, and among equally close ones the better-known games.

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

Escape Simulator
Shared: Puzzle · Escape Room · Adventure

The Room Three
Shared: Puzzle · Adventure · Escape Room

Portal 2
Shared: Puzzle · Singleplayer · First-Person

The Room
Shared: Puzzle · Adventure · Singleplayer

Samsara Room
Shared: Puzzle · Adventure · Escape Room

Riven
Shared: Puzzle · Adventure · Singleplayer

Blue Prince
Shared: Puzzle · Adventure · Singleplayer

BONEWORKS
Shared: Physics · Puzzle · Adventure

Underground Blossom
Shared: Adventure · Puzzle · Escape Room

Superliminal
Shared: Puzzle · Physics · Adventure

Poppy Playtime
Shared: Puzzle · Singleplayer · Adventure

Human Fall Flat
Shared: Puzzle · Adventure · Physics

Servant of the Lake
Shared: Puzzle · Adventure · Escape Room

Chants of Sennaar
Shared: Puzzle · Adventure · Singleplayer

Viewfinder
Shared: Puzzle · Adventure · Singleplayer

COCOON
Shared: Puzzle · Adventure · Indie

Agent A: A puzzle in disguise
Shared: Puzzle · Escape Room · Logic

The Last Campfire
Shared: Puzzle · Adventure · Singleplayer

PEAK
Shared: Adventure · Physics · 3D

The Artisan of Glimmith
Shared: Puzzle · Logic · Cozy

The Mr. Rabbit Magic Show
Shared: Adventure · Puzzle · Escape Room

The Escaper
Shared: Puzzle · Adventure · Escape Room

Murders on the Yangtze River
Shared: Puzzle · Adventure · Logic