Games like Elements of Harmony
Games like Elements of Harmony include Laughing to Die, FEZ, Braid, LIMBO, and BEEP. We matched them by the tags players give Elements of Harmony on Steam (2D Platformer, Casual, Adventure, Puzzle, and PvE): closest matches first, and among equally close ones the better-known games.

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

FEZ
Shared: Puzzle · Platformer · Adventure

Braid
Shared: 2D Platformer · Puzzle · Platformer

LIMBO
Shared: Puzzle · Platformer · Adventure

BEEP
Shared: Adventure · Platformer · Indie

Pikuniku
Shared: Casual · Adventure · Puzzle

Scribblenauts Unlimited
Shared: Casual · Puzzle · Adventure

Thank Goodness You're Here!
Shared: Adventure · Casual · 2D Platformer

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Casual

Nihilumbra
Shared: Adventure · Casual · Puzzle

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

A Story About My Uncle
Shared: Adventure · Platformer · Indie

Celeste
Shared: 2D Platformer · Platformer · Indie

Neva
Shared: Adventure · Platformer · Puzzle

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

Hue
Shared: Adventure · Puzzle · Platformer

GRIS
Shared: Adventure · Indie · Platformer

SANABI
Shared: 2D Platformer · Adventure · 2D

Strange Jigsaws
Shared: Casual · Adventure · Puzzle

Hollow Knight
Shared: Platformer · 2D · Adventure

Munin
Shared: Casual · Puzzle · Adventure

Gorogoa
Shared: Puzzle · Casual · Indie

Zup! S
Shared: Casual · Puzzle · 2D

Melvor Idle
Shared: Casual · Adventure · Indie