Games like Gobotix: Duo
Games like Gobotix: Duo include Portal 2, Portal, Chained Together, EDGE, and LIMBO. We matched them by the tags players give Gobotix: Duo on Steam (Casual, Platformer, Point & Click, Puzzle, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle · Puzzle Platformer

Portal
Shared: Puzzle · 3D Platformer · Puzzle Platformer

Chained Together
Shared: Platformer · Casual · 3D Platformer

EDGE
Shared: Puzzle · Platformer · Puzzle Platformer

LIMBO
Shared: Platformer · Puzzle · Puzzle Platformer

Click the Button
Shared: Casual · Incremental · Point & Click

FEZ
Shared: Platformer · Puzzle · Casual

Cookie Clicker
Shared: Casual · Incremental · Idler

Zup!
Shared: Casual · Puzzle · Point & Click

Digseum
Shared: Casual · Incremental · Idler

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

Defy Gravity Extended
Shared: Platformer · Puzzle · Puzzle Platformer

Monument Valley 3
Shared: Casual · Puzzle · Colorful

Zup! F
Shared: Casual · Puzzle · Point & Click

Sizeable
Shared: Casual · Puzzle · 3D

Zup! 2
Shared: Casual · Puzzle · Point & Click

Zup! X
Shared: Casual · Puzzle · Point & Click

Boxes: Lost Fragments
Shared: Puzzle · Point & Click · Casual

Zup! 4
Shared: Casual · Puzzle · Point & Click

Zup! 3
Shared: Casual · Puzzle · Point & Click

Refunct
Shared: 3D Platformer · Casual · Platformer

There Is No Game: Wrong Dimension
Shared: Point & Click · Puzzle · Casual

Zup! Zero
Shared: Casual · Puzzle · Point & Click

Moncage
Shared: Casual · Puzzle · Indie