Games like Above the Sun
Games like Above the Sun include Celeste, Super Meat Boy, Skul: The Hero Slayer, Katana ZERO, and VVVVVV. We matched them by the tags players give Above the Sun on Steam (Platformer, Action, Precision Platformer, Pixel Graphics, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · Precision Platformer · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Indie

Katana ZERO
Shared: Action · Platformer · Pixel Graphics

VVVVVV
Shared: Platformer · Precision Platformer · Pixel Graphics

Downwell
Shared: Precision Platformer · Platformer · Pixel Graphics

Jump King
Shared: Precision Platformer · Platformer · Pixel Graphics

SANABI
Shared: Action · Pixel Graphics · Platformer

The End Is Nigh
Shared: Platformer · Precision Platformer · Indie

Rogue Legacy
Shared: Platformer · Action · Indie

BlazBlue Entropy Effect
Shared: Action · Platformer · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Action

Broforce
Shared: Action · Pixel Graphics · Platformer

Electronic Super Joy
Shared: Platformer · Action · Indie

Neon Abyss
Shared: Platformer · Procedural Generation · Pixel Graphics

Pizza Tower
Shared: Platformer · Indie · Pixel Graphics

Gravity Circuit
Shared: Platformer · Action · Pixel Graphics

Risk of Rain (2013)
Shared: Platformer · Action · Pixel Graphics

Ambidextro
Shared: Action · Precision Platformer · Platformer

F.I.S.T.: Forged In Shadow Torch
Shared: Platformer · Action · Steampunk

Geometry Dash
Shared: Precision Platformer · Platformer · Singleplayer

Out There Somewhere
Shared: Platformer · Pixel Graphics · Indie

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Platformer · Action

Hollow Knight
Shared: Platformer · Singleplayer · Indie