Games like FADE^2
Games like FADE^2 include Broforce, BIT.TRIP RUNNER, Sonic Mania, SANABI, and Skul: The Hero Slayer. We matched them by the tags players give FADE^2 on Steam (Action, Adventure, Rhythm, Platformer, and Runner): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · Platformer · 2D

BIT.TRIP RUNNER
Shared: Rhythm · Platformer · Action

Sonic Mania
Shared: Platformer · 2D · Adventure

SANABI
Shared: Action · Adventure · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · 2D · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Action

Geometry Dash
Shared: Rhythm · 2D · Platformer

LIMBO
Shared: Platformer · Adventure · 2D

Mark of the Ninja
Shared: Platformer · Action · Adventure

Hollow Knight
Shared: Platformer · 2D · Adventure

Deadlight
Shared: Action · Platformer · Adventure

Dust: An Elysian Tail
Shared: Action · Platformer · Adventure

Ori and the Will of the Wisps
Shared: Platformer · Action · Adventure

Dead Cells
Shared: Adventure · 2D · Platformer

Monster Boy and the Cursed Kingdom
Shared: Action · Adventure · Platformer

Bloodstained: Curse of the Moon
Shared: Action · Platformer · 2D

Eastern Exorcist
Shared: Action · Adventure · Side Scroller

Dungeon Munchies
Shared: Action · Adventure · 2D

MO:Astray
Shared: Action · Adventure · Platformer

Gato Roboto
Shared: Action · Adventure · Platformer

ICEY
Shared: Action · Adventure · Side Scroller

Neva
Shared: Adventure · Platformer · Colorful

Axiom Verge
Shared: Action · Platformer · Adventure

Iconoclasts
Shared: Action · Adventure · Platformer