Games like Mr. Bree+
Games like Mr. Bree+ include Hollow Knight, Hollow Knight: Silksong, Skul: The Hero Slayer, Celeste, and SANABI. We matched them by the tags players give Mr. Bree+ on Steam (Indie, Adventure, Action, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Indie · 2D

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

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

Celeste
Shared: Indie · Difficult · Platformer

SANABI
Shared: Action · Adventure · Indie

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

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

Nine Sols
Shared: Platformer · 2D · Action

BEEP
Shared: Indie · Adventure · Platformer

Jump King
Shared: Indie · Adventure · Difficult

Rogue Legacy 2
Shared: Indie · Action · Platformer

LIMBO
Shared: Indie · Platformer · Adventure

Geometry Dash
Shared: Difficult · 2D · Platformer

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

Angvik
Shared: Indie · Action · Platformer

Super Meat Boy
Shared: Indie · Platformer · Difficult

Mark of the Ninja
Shared: Indie · Platformer · Action

Zombotron
Shared: Action · Adventure · Indie

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

Cuphead
Shared: Platformer · Difficult · Indie

The End Is Nigh
Shared: Indie · Platformer · Adventure

Out There Somewhere
Shared: Indie · Platformer · Adventure

Minimalism
Shared: Indie · Action · Adventure

Deadlight
Shared: Indie · Action · Platformer