Games like Ynglet
Games like Ynglet include Creaks, GRIS, Webbed, LIMBO, and Planet of Lana. We matched them by the tags players give Ynglet on Steam (Puzzle Platformer, Relaxing, Atmospheric, 2D Platformer, and Arcade): closest matches first, and among equally close ones the better-known games.

Creaks
Shared: Atmospheric · Puzzle Platformer · Relaxing

GRIS
Shared: Atmospheric · Relaxing · 2D

Webbed
Shared: 2D Platformer · Puzzle Platformer · Relaxing

LIMBO
Shared: Puzzle Platformer · Atmospheric · 2D

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

Neva
Shared: Atmospheric · 2D Platformer · Adventure

Melatonin
Shared: Relaxing · 2D · Music

The Bridge
Shared: Puzzle Platformer · 2D · Surreal

ANIMAL WELL
Shared: Puzzle Platformer · Atmospheric · 2D

Refunct
Shared: Relaxing · Puzzle Platformer · Atmospheric

Braid
Shared: Puzzle Platformer · 2D Platformer · 2D

Birth
Shared: Relaxing · Atmospheric · Surreal

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

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

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

Carto
Shared: Relaxing · Atmospheric · Hand-drawn

The Pedestrian
Shared: Puzzle Platformer · Atmospheric · 2D Platformer

INSIDE
Shared: Puzzle Platformer · Atmospheric · 2D Platformer

Hoa
Shared: Relaxing · 2D Platformer · Atmospheric

FAR: Changing Tides
Shared: Atmospheric · Puzzle Platformer · Stylized

Zup!
Shared: Relaxing · 2D · Puzzle Platformer

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

Viewfinder
Shared: Puzzle Platformer · Atmospheric · Surreal

Papetura
Shared: Atmospheric · Relaxing · Stylized