Games like LAPIN
Games like LAPIN include Celeste, Hollow Knight, Hollow Knight: Silksong, GRIS, and Ori and the Will of the Wisps. We matched them by the tags players give LAPIN on Steam (Precision Platformer, Hand-drawn, Cute, Atmospheric, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Female Protagonist · 2D Platformer

Hollow Knight
Shared: 2D · Atmospheric · Hand-drawn

Hollow Knight: Silksong
Shared: 2D · Female Protagonist · Indie

GRIS
Shared: Atmospheric · Hand-drawn · Female Protagonist

Ori and the Will of the Wisps
Shared: Atmospheric · Action · Cute

SANABI
Shared: Action · Story Rich · 2D Platformer

Planet of Lana
Shared: Atmospheric · Female Protagonist · Action

Carto
Shared: Cute · Hand-drawn · Female Protagonist

Tomb Raider Game of the Year
Shared: Female Protagonist · Action · Story Rich

Nine Sols
Shared: Hand-drawn · 2D · Action

Rain World
Shared: Atmospheric · 2D · Exploration

Super Meat Boy
Shared: Precision Platformer · 2D Platformer · 2D

Rise of the Tomb Raider™
Shared: Female Protagonist · Action · Singleplayer

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

OneShot
Shared: Cute · Atmospheric · Story Rich

Constance
Shared: 2D · Hand-drawn · Action

Hoa
Shared: Hand-drawn · Atmospheric · 2D Platformer

Thomas Was Alone
Shared: Precision Platformer · 2D Platformer · Atmospheric

Child of Light
Shared: Female Protagonist · Atmospheric · 2D

Geometry Dash
Shared: Precision Platformer · 2D · Singleplayer

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Female Protagonist · Story Rich

MIO: Memories in Orbit
Shared: Atmospheric · Exploration · 2D

Jotun: Valhalla Edition
Shared: Hand-drawn · Female Protagonist · Action

A Plague Tale: Innocence
Shared: Female Protagonist · Atmospheric · Story Rich