Games like Glimmer in Mirror
Games like Glimmer in Mirror include Afterimage, Rabi-Ribi, Bloodstained: Ritual of the Night, Frontier Hunter: Erza’s Wheel of Fortune, and Touhou Luna Nights. We matched them by the tags players give Glimmer in Mirror on Steam (Early Access, Anime, Female Protagonist, Side Scroller, and Exploration): closest matches first, and among equally close ones the better-known games.

Afterimage
Shared: Female Protagonist · Anime · Side Scroller

Rabi-Ribi
Shared: Anime · Female Protagonist · Bullet Hell

Bloodstained: Ritual of the Night
Shared: Female Protagonist · Anime · Side Scroller

Frontier Hunter: Erza’s Wheel of Fortune
Shared: Female Protagonist · Side Scroller · Anime

Touhou Luna Nights
Shared: Side Scroller · Exploration · Female Protagonist

Touhou Hero of Ice Fairy
Shared: Anime · Female Protagonist · Side Scroller

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · 2D Platformer · Female Protagonist

ICEY
Shared: Anime · Female Protagonist · Side Scroller

Gensokyo Night Festival
Shared: Action · Early Access · Female Protagonist

Castlevania: Belmont's Curse
Shared: Female Protagonist · 2D Platformer · Action

9 Years of Shadows
Shared: Side Scroller · Anime · Platformer

The Vagrant
Shared: Female Protagonist · Side Scroller · Action

TEVI
Shared: Anime · Female Protagonist · Bullet Hell

Nyaruru Fishy Fight
Shared: Anime · Female Protagonist · Exploration

Tales of Berseria™
Shared: Anime · Female Protagonist · JRPG

Prince of Persia The Lost Crown
Shared: Exploration · Side Scroller · 2D Platformer

Planet of Lana
Shared: Female Protagonist · Action · 2D Platformer

AI LIMIT
Shared: Anime · Female Protagonist · Action RPG

Bladed fury
Shared: Female Protagonist · Action · Side Scroller

Dungeon Munchies
Shared: Anime · Action · Exploration

Indivisible
Shared: Female Protagonist · Anime · Action

Record of Lodoss War-Deedlit in Wonder Labyrinth-
Shared: Female Protagonist · Exploration · Anime

永远消失的幻想乡 ~ The Disappearing of Gensokyo
Shared: Anime · Female Protagonist · Bullet Hell

Timespinner
Shared: Female Protagonist · Side Scroller · Exploration