Games like String Rush
Games like String Rush include The Pedestrian, Trine 2: Complete Story, Braid, Mind Over Magnet, and INSIDE. We matched them by the tags players give String Rush on Steam (Puzzle, Logic, Puzzle Platformer, Strategy, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

The Pedestrian
Shared: Puzzle · Logic · Puzzle Platformer

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

Braid
Shared: Puzzle · Puzzle Platformer · 2D Platformer

Mind Over Magnet
Shared: Puzzle · Puzzle Platformer · 2D Platformer

INSIDE
Shared: Puzzle Platformer · 2.5D · Puzzle

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer

Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer

Portal
Shared: Puzzle · Puzzle Platformer · Sci-fi

LIMBO
Shared: Puzzle · Puzzle Platformer · Platformer

Trine Enchanted Edition
Shared: Puzzle Platformer · 2D Platformer · Strategy

The Bridge
Shared: Puzzle Platformer · Puzzle · Logic

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

Dorfromantik
Shared: Puzzle · Strategy · Resource Management

Baba Is You
Shared: Puzzle · Logic · Indie

FEZ
Shared: Puzzle · Platformer · Puzzle Platformer

Hexcells
Shared: Puzzle · Logic · Strategy

Webbed
Shared: 2D Platformer · Puzzle Platformer · Platformer

The Farmer Was Replaced
Shared: Logic · Puzzle · Programming

Moonleap
Shared: Puzzle · Puzzle Platformer · Strategy

Zup! S
Shared: Puzzle · Logic · Casual

Munin
Shared: Puzzle Platformer · Puzzle · Platformer

BEEP
Shared: Puzzle · Platformer · Strategy

Hexcells Infinite
Shared: Puzzle · Logic · Strategy

Laughing to Die
Shared: Puzzle · 2D Platformer · Platformer