Games like Gravity Mastery
Games like Gravity Mastery include Portal, Portal 2, Viewfinder, The Ball, and Quantum Conundrum. We matched them by the tags players give Gravity Mastery on Steam (Puzzle, Strategy, 3D Platformer, Indie, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · 3D Platformer · Puzzle Platformer

Portal 2
Shared: Puzzle · Singleplayer · First-Person

Viewfinder
Shared: Puzzle · Puzzle Platformer · Singleplayer

The Ball
Shared: 3D Platformer · Puzzle · Strategy

Quantum Conundrum
Shared: Puzzle · 3D Platformer · Puzzle Platformer

Supraland
Shared: Puzzle Platformer · Puzzle · Singleplayer

Zup! S
Shared: Puzzle · Indie · Physics

Buckshot Roulette
Shared: Strategy · Singleplayer · Indie

The Last Campfire
Shared: Puzzle · Singleplayer · Indie

LIMBO
Shared: Puzzle · Indie · Puzzle Platformer

Teardown
Shared: Physics · Singleplayer · Indie

Moncage
Shared: Puzzle · Indie · Singleplayer

Antichamber
Shared: Puzzle · Indie · First-Person

Superliminal
Shared: Puzzle · First-Person · Singleplayer

Totally Accurate Battle Simulator
Shared: Strategy · Physics · Singleplayer

Zup!
Shared: Puzzle · Indie · Physics

Mini Metro
Shared: Puzzle · Strategy · Indie

Hexcells
Shared: Puzzle · Indie · Strategy

The Bridge
Shared: Puzzle · Puzzle Platformer · Physics

Poly Bridge
Shared: Puzzle · Physics · Singleplayer

Bendy and the Ink Machine
Shared: Puzzle · Singleplayer · First-Person

Bridge Constructor Portal
Shared: Puzzle · Strategy · Physics

Baba Is You
Shared: Puzzle · Indie · Singleplayer

Mini Motorways
Shared: Strategy · Puzzle · Indie