Games like Bookbound Brigade
Games like Bookbound Brigade include Hollow Knight, Hollow Knight: Silksong, Ori and the Will of the Wisps, Dust: An Elysian Tail, and Skul: The Hero Slayer. We matched them by the tags players give Bookbound Brigade on Steam (Action, Adventure, Indie, Metroidvania, and 2D): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Indie · 2D

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

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

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

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

Dead Cells
Shared: Adventure · Metroidvania · 2D

Rogue Legacy 2
Shared: Action · Metroidvania · Indie

Monster Boy and the Cursed Kingdom
Shared: Action · Adventure · Indie

Pizza Tower
Shared: Indie · Cartoony · Action

Gato Roboto
Shared: Action · Indie · Metroidvania

Guacamelee! Super Turbo Championship Edition
Shared: Metroidvania · Action · 2D

Iconoclasts
Shared: Indie · Action · Metroidvania

LIMBO
Shared: Indie · Adventure · Puzzle Platformer

Pikuniku
Shared: Adventure · Indie · Action

Nine Sols
Shared: Metroidvania · Action · 2D

Slime Rancher
Shared: Adventure · Singleplayer · Cute

UnEpic
Shared: Indie · Action · Metroidvania

Guacamelee! 2
Shared: Metroidvania · Action · Cartoony

ICEY
Shared: Action · Adventure · Indie

SteamWorld Dig 2
Shared: Adventure · Action · Indie

Guacamelee! Gold Edition
Shared: Action · Metroidvania · Indie

Owlboy
Shared: Adventure · Indie · Metroidvania

Dungeon Munchies
Shared: Action · Indie · Adventure

Blasphemous
Shared: Metroidvania · 2D · Indie