Games like Shooting Donut
Games like Shooting Donut include Webbed, Braid, Zuma Deluxe, Trine 2: Complete Story, and Banana. We matched them by the tags players give Shooting Donut on Steam (2D Platformer, Puzzle Platformer, Puzzle, Arcade, and 2D): closest matches first, and among equally close ones the better-known games.

Webbed
Shared: 2D Platformer · Puzzle Platformer · Cute

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Zuma Deluxe
Shared: Puzzle · Arcade · 2D

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

Banana
Shared: 2D · Casual · Arcade

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Peggle Deluxe
Shared: Puzzle · Arcade · Casual

Zup!
Shared: Puzzle · 2D · Casual

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

KarmaZoo
Shared: 2D Platformer · Puzzle · Puzzle Platformer

Is This Seat Taken?
Shared: Puzzle · Cute · Casual

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

Cat Goes Fishing
Shared: 2D · Cute · Casual

LIMBO
Shared: Puzzle Platformer · Puzzle · 2D

Zup! F
Shared: Puzzle · 2D · Casual

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

A Little to the Left
Shared: Puzzle · Cute · Casual

Zup! 2
Shared: Puzzle · 2D · Casual

Pikuniku
Shared: Puzzle · Cute · Casual

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · 2D

A Dance of Fire and Ice
Shared: 2D · Arcade · Colorful

Zup! S
Shared: Puzzle · 2D · Casual

The Plucky Squire
Shared: 2D Platformer · Puzzle Platformer · Cute

Zup! X
Shared: Puzzle · 2D · Casual