Games like Mosaic Maze
Games like Mosaic Maze include LIMBO, Hollow Knight, Hollow Knight: Silksong, Rain World, and Celeste. We matched them by the tags players give Mosaic Maze on Steam (Indie, Platformer, Difficult, Atmospheric, and Puzzle Platformer): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

Hollow Knight
Shared: Platformer · Difficult · Indie

Hollow Knight: Silksong
Shared: Indie · Difficult · Platformer

Rain World
Shared: Difficult · Atmospheric · Indie

Celeste
Shared: Difficult · Indie · Platformer

Braid
Shared: Indie · Puzzle Platformer · Platformer

INSIDE
Shared: Atmospheric · Puzzle Platformer · Indie

GRIS
Shared: Indie · Atmospheric · Platformer

Cuphead
Shared: Difficult · Platformer · Indie

Nine Sols
Shared: Difficult · Platformer · Indie

Defy Gravity Extended
Shared: Platformer · Indie · Puzzle Platformer

Little Nightmares
Shared: Atmospheric · Indie · Puzzle Platformer

Nihilumbra
Shared: Indie · Platformer · Puzzle Platformer

Super Meat Boy
Shared: Platformer · Indie · Difficult

Never Alone (Kisima Ingitchuna)
Shared: Indie · Platformer · Atmospheric

Neva
Shared: Platformer · Indie · Atmospheric

Geometry Dash
Shared: Difficult · Platformer · Indie

Squishy the Suicidal Pig
Shared: Indie · Platformer · Puzzle Platformer

MO:Astray
Shared: Indie · Platformer · Puzzle Platformer

Jump King
Shared: Difficult · Indie · Platformer

Seen
Shared: Indie · Atmospheric · Platformer

MIO: Memories in Orbit
Shared: Platformer · Indie · Atmospheric

Planet of Lana
Shared: Puzzle Platformer · Atmospheric · Platformer

Spelunky
Shared: Platformer · Indie · Difficult