Games like Cubie
Games like Cubie include Webbed, Celeste, Braid, LIMBO, and Super Meat Boy. We matched them by the tags players give Cubie on Steam (2D Platformer, Puzzle Platformer, Puzzle, Difficult, and Platformer): closest matches first, and among equally close ones the better-known games.

Webbed
Shared: 2D Platformer · Puzzle Platformer · Cute

Celeste
Shared: Difficult · 2D Platformer · Platformer

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

Super Meat Boy
Shared: 2D Platformer · Difficult · Platformer

Baba Is You
Shared: Puzzle · Difficult · Cute

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Zup! S
Shared: Puzzle · 2D · Casual

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer

FEZ
Shared: Puzzle · Platformer · Puzzle Platformer

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

Rain World
Shared: Difficult · Platformer · 2D

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

Zup!
Shared: Puzzle · 2D · Puzzle Platformer

Zup! X
Shared: Puzzle · 2D · Puzzle Platformer

Squishy the Suicidal Pig
Shared: Puzzle · Puzzle Platformer · Platformer

ANIMAL WELL
Shared: Puzzle · Puzzle Platformer · Platformer

Toki Tori
Shared: Puzzle · Platformer · Difficult

Zup! 2
Shared: Puzzle · 2D · Puzzle Platformer

Zup! F
Shared: Puzzle · 2D · Puzzle Platformer

Hollow Knight
Shared: Platformer · Difficult · 2D

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

Zup! 6
Shared: Puzzle · 2D · Puzzle Platformer

Munin
Shared: Puzzle Platformer · Puzzle · 2D Platformer