Games like Akane the Kunoichi
Games like Akane the Kunoichi include ICEY, Celeste, Rabi-Ribi, Hollow Knight: Silksong, and Planet of Lana. We matched them by the tags players give Akane the Kunoichi on Steam (Anime, Platformer, Action, Female Protagonist, and Indie): closest matches first, and among equally close ones the better-known games.

ICEY
Shared: Anime · Action · Female Protagonist

Celeste
Shared: Platformer · Indie · Female Protagonist

Rabi-Ribi
Shared: Anime · Female Protagonist · Indie

Hollow Knight: Silksong
Shared: Indie · Platformer · Female Protagonist

Planet of Lana
Shared: Action · Female Protagonist · Platformer

Bloodstained: Ritual of the Night
Shared: Female Protagonist · Action · Anime

Freedom Planet
Shared: Platformer · Action · Female Protagonist

Skul: The Hero Slayer
Shared: Action · Indie · Platformer

Dungeon Munchies
Shared: Action · Indie · Anime

Gensokyo Night Festival
Shared: Action · Indie · Casual

BlazBlue Entropy Effect
Shared: Action · Platformer · Anime

Mark of the Ninja
Shared: Platformer · Indie · Action

Bladed fury
Shared: Action · Female Protagonist · Indie

Lost Ruins
Shared: Anime · Action · Platformer

Muse Dash
Shared: Anime · Female Protagonist · Casual

The Vagrant
Shared: Action · Female Protagonist · 2D

Hollow Knight
Shared: Platformer · Indie · 2D

SANABI
Shared: Action · Adventure · Pixel Graphics

GRIS
Shared: Female Protagonist · Indie · Platformer

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

Iconoclasts
Shared: Indie · Female Protagonist · Action

Out There Somewhere
Shared: Platformer · Indie · Adventure

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

Camera Obscura
Shared: Platformer · Indie · Anime