Games like Jumping Mellow
Games like Jumping Mellow include Hollow Knight, Hollow Knight: Silksong, Minimalism, BEEP, and Skul: The Hero Slayer. We matched them by the tags players give Jumping Mellow on Steam (Indie, Casual, Action, Adventure, and Platformer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Indie · Difficult

Hollow Knight: Silksong
Shared: Indie · Difficult · 2D

Minimalism
Shared: Indie · Casual · Action

BEEP
Shared: Indie · Adventure · Platformer

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

Nine Sols
Shared: Action · Platformer · 2D

Pikuniku
Shared: Indie · Casual · Adventure

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

Celeste
Shared: Indie · Difficult · Platformer

No Time To Explain Remastered
Shared: Indie · Action · Casual

Jump King
Shared: Indie · Difficult · Adventure

Rogue Legacy 2
Shared: Indie · Action · Platformer

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

Super Fancy Pants Adventure
Shared: Indie · Action · Adventure

BADLAND: Game of the Year Edition
Shared: Indie · Adventure · Action

SANABI
Shared: Action · Adventure · Indie

Cuphead
Shared: Difficult · Platformer · Indie

LIMBO
Shared: Indie · Platformer · Adventure

Nihilumbra
Shared: Indie · Adventure · Casual

Broforce
Shared: Action · Indie · 2D

UFO 50
Shared: Indie · Action · 2D

Angvik
Shared: Indie · Action · Platformer

Geometry Dash
Shared: Difficult · 2D · Platformer

Angry Video Game Nerd Adventures
Shared: Indie · Action · Platformer