Games like One Flag: A 2D Puzzle-Platformer
Games like One Flag: A 2D Puzzle-Platformer include Braid, Öoo, LIMBO, Webbed, and Trine 2: Complete Story. We matched them by the tags players give One Flag: A 2D Puzzle-Platformer on Steam (2D Platformer, Puzzle Platformer, Platformer, Casual, and Puzzle): closest matches first, and among equally close ones the better-known games.

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

LIMBO
Shared: Puzzle Platformer · Platformer · Puzzle

Webbed
Shared: 2D Platformer · Puzzle Platformer · Platformer

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

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

Moonleap
Shared: Puzzle Platformer · Platformer · Puzzle

Zup! F
Shared: Casual · Puzzle · 2D

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · Puzzle

Zup!
Shared: Casual · Puzzle · 2D

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

FEZ
Shared: Platformer · Puzzle · Puzzle Platformer

Zup! 2
Shared: Casual · Puzzle · 2D

Zup! S
Shared: Casual · Puzzle · 2D

Toki Tori
Shared: Puzzle · Platformer · Casual

Zup! X
Shared: Casual · Puzzle · 2D

Zup! 8
Shared: Casual · Puzzle · 2D

KarmaZoo
Shared: Platformer · Casual · 2D Platformer

Zup! 3
Shared: Casual · Puzzle · 2D

Zup! 4
Shared: Casual · Puzzle · Puzzle Platformer

Thomas Was Alone
Shared: Platformer · 2D Platformer · Puzzle Platformer

ElecHead
Shared: Puzzle Platformer · Platformer · Puzzle

Portal 2
Shared: Platformer · Puzzle · Puzzle Platformer

Pikuniku
Shared: Casual · Puzzle · Cute