Games like Gunbrella
Games like Gunbrella include Hollow Knight, Skul: The Hero Slayer, Hollow Knight: Silksong, Touhou Luna Nights, and Rain World. We matched them by the tags players give Gunbrella on Steam (Side Scroller, Exploration, Platformer, Difficult, and 2D): closest matches first, and among equally close ones the better-known games.
Hollow Knight
Shared: Platformer · Difficult · 2D
Skul: The Hero Slayer
Shared: Action Roguelike · 2D · Pixel Graphics
Hollow Knight: Silksong
Shared: Difficult · 2D · Platformer
Touhou Luna Nights
Shared: Side Scroller · Difficult · Exploration
Rain World
Shared: Difficult · Exploration · Platformer
Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · 2D
SANABI
Shared: Pixel Graphics · 2D · Action
Rogue Legacy
Shared: Platformer · Action Roguelike · 2D
Dead Cells
Shared: Action Roguelike · 2D · Pixel Graphics
Celeste
Shared: Difficult · Platformer · Pixel Graphics
Momodora: Reverie Under The Moonlight
Shared: Side Scroller · Exploration · Pixel Graphics
Super Meat Boy
Shared: Platformer · Difficult · 2D
Geometry Dash
Shared: Difficult · 2D · Platformer
Broforce
Shared: 2D · Platformer · Pixel Graphics
Blasphemous 2
Shared: Difficult · Side Scroller · Pixel Graphics
Ori and the Will of the Wisps
Shared: Platformer · Exploration · Action
Dungreed
Shared: Action Roguelike · Pixel Graphics · 2D
Dungeon Munchies
Shared: Pixel Graphics · Action · 2D
BlazBlue Entropy Effect
Shared: 2D · Action Roguelike · Platformer
Gato Roboto
Shared: 2D · Platformer · Pixel Graphics
Cave Story+
Shared: Exploration · Platformer · Difficult
Bloodstained: Curse of the Moon
Shared: Platformer · Side Scroller · 2D
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Difficult · Pixel Graphics
Katana ZERO
Shared: Platformer · Pixel Graphics · Action