Games like Jetlad
Games like Jetlad include Hollow Knight, Skul: The Hero Slayer, Hollow Knight: Silksong, Geometry Dash, and Cuphead. We matched them by the tags players give Jetlad on Steam (Action, Indie, Platformer, Side Scroller, and 2D): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Indie · Difficult

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

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

Geometry Dash
Shared: Difficult · 2D · Platformer

Cuphead
Shared: Platformer · Difficult · Indie

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

Super Meat Boy
Shared: Platformer · Indie · Difficult

Rogue Legacy
Shared: Platformer · Indie · Action

Celeste
Shared: Indie · Difficult · Platformer

Mark of the Ninja
Shared: Platformer · Indie · Action

Rogue Legacy 2
Shared: Action · Platformer · Indie

SANABI
Shared: Action · Indie · 2D

Nine Sols
Shared: Action · Platformer · 2D

Angvik
Shared: Indie · Action · Platformer

Broforce
Shared: Action · 2D · Platformer

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

LIMBO
Shared: Indie · Platformer · 2D

Katana ZERO
Shared: Action · Platformer · Indie

Super Meat Boy Forever
Shared: Indie · Action · Platformer

Deadlight
Shared: Action · Platformer · Indie

My Friend Pedro
Shared: Action · Indie · Side Scroller

Intrusion 2
Shared: Action · Indie · Platformer

Jump King
Shared: Indie · Difficult · Platformer

ICEY
Shared: Action · Side Scroller · Indie