Games like Jump Out
Games like Jump Out include Celeste, Super Meat Boy, Downwell, VVVVVV, and SANABI. We matched them by the tags players give Jump Out on Steam (Precision Platformer, Parkour, Platformer, Arcade, and Adventure): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · Pixel Graphics

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

Downwell
Shared: Precision Platformer · Platformer · Pixel Graphics

VVVVVV
Shared: Precision Platformer · Platformer · Pixel Graphics

SANABI
Shared: Pixel Graphics · Adventure · 2D Platformer

Jump King
Shared: Precision Platformer · Platformer · Adventure

Rain World
Shared: Platformer · Pixel Graphics · Adventure

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

Hollow Knight
Shared: Platformer · 2D · Adventure

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

Reventure
Shared: Adventure · Pixel Graphics · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Pixel Graphics

Webbed
Shared: 2D Platformer · Pixel Graphics · Platformer

Geometry Dash
Shared: Precision Platformer · Platformer · 2D

FEZ
Shared: Platformer · Pixel Graphics · Adventure

White Knuckle
Shared: Parkour · Platformer · Precision Platformer

Rogue Legacy 2
Shared: Arcade · Platformer · Adventure

Terraria
Shared: Pixel Graphics · Adventure · 2D

Leap Year
Shared: Precision Platformer · Platformer · 2D Platformer

Sonic Origins
Shared: Adventure · Platformer · 2D Platformer

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

Owlboy
Shared: Platformer · Adventure · Pixel Graphics

Dead Cells
Shared: Adventure · Pixel Graphics · Platformer

Katana ZERO
Shared: Pixel Graphics · Platformer · 2D Platformer