Games like Butterfly X
Games like Butterfly X include Webbed, LIMBO, Celeste, The Pedestrian, and FEZ. We matched them by the tags players give Butterfly X on Steam (Adventure, Puzzle, Platformer, 2D Platformer, and Side Scroller): closest matches first, and among equally close ones the better-known games.

Webbed
Shared: 2D Platformer · Cute · Puzzle Platformer

LIMBO
Shared: Puzzle · Platformer · Puzzle Platformer

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

The Pedestrian
Shared: Puzzle · Platformer · Puzzle Platformer

FEZ
Shared: Puzzle · Platformer · Adventure

ANIMAL WELL
Shared: Puzzle · Platformer · Puzzle Platformer

Mind Over Magnet
Shared: Puzzle · Adventure · Puzzle Platformer

Hue
Shared: Puzzle · Adventure · Platformer

Braid
Shared: Puzzle · 2D Platformer · Puzzle Platformer

Öoo
Shared: Puzzle · 2D Platformer · Puzzle Platformer

SANABI
Shared: Adventure · 2D Platformer · Pixel Graphics

Out There Somewhere
Shared: Platformer · Puzzle · Adventure

Neva
Shared: Adventure · Platformer · Puzzle

Squishy the Suicidal Pig
Shared: Puzzle · Platformer · Adventure

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

CATO: Buttered Cat
Shared: Adventure · Puzzle · Puzzle Platformer

Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer

Pikuniku
Shared: Adventure · Puzzle · Cute

Unravel
Shared: Puzzle · Adventure · Platformer

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

Creepy Tale
Shared: Adventure · Puzzle · Puzzle Platformer

Laughing to Die
Shared: Adventure · Puzzle · Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Pixel Graphics

ElecHead
Shared: Puzzle · Platformer · Puzzle Platformer