Games like Gordianaut
Games like Gordianaut include Braid, LIMBO, Defy Gravity Extended, FEZ, and Portal 2. We matched them by the tags players give Gordianaut on Steam (Puzzle, Casual, Puzzle Platformer, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Braid
Shared: Puzzle · Puzzle Platformer · Platformer

LIMBO
Shared: Puzzle · Puzzle Platformer · Platformer

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer

FEZ
Shared: Puzzle · Platformer · Indie

Portal 2
Shared: Puzzle · Platformer · Singleplayer

Trine 2: Complete Story
Shared: Puzzle Platformer · Platformer · Puzzle

Planet of Lana
Shared: Puzzle Platformer · Puzzle · 2D Platformer

Nihilumbra
Shared: Puzzle · Platformer · Casual

Laughing to Die
Shared: Casual · Puzzle · Platformer

Hue
Shared: Puzzle · Puzzle Platformer · Platformer

Zup!
Shared: Puzzle · Casual · Indie

Toki Tori
Shared: Puzzle · Casual · Platformer

Zup! S
Shared: Puzzle · Casual · 2D

Zup! F
Shared: Puzzle · Casual · Indie

Zup! 2
Shared: Puzzle · Casual · 2D

Munin
Shared: Casual · Puzzle Platformer · Puzzle

Zup! X
Shared: Puzzle · Casual · Indie

Squishy the Suicidal Pig
Shared: Puzzle · Platformer · Puzzle Platformer

Portal
Shared: Puzzle · Puzzle Platformer · Singleplayer

Zup! 3
Shared: Puzzle · Casual · Indie

Celeste
Shared: Platformer · 2D Platformer · Indie

BEEP
Shared: Platformer · Puzzle · Indie

Zup! 4
Shared: Puzzle · Casual · Puzzle Platformer

Zup! 8
Shared: Puzzle · Casual · 2D