Games like Quant
Games like Quant include Hollow Knight, Hollow Knight: Silksong, Rain World, ANIMAL WELL, and TUNIC. We matched them by the tags players give Quant on Steam (2D, Atmospheric, Metroidvania, Colorful, and Cute): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · 2D · Difficult

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

Rain World
Shared: Atmospheric · Difficult · 2D

ANIMAL WELL
Shared: Metroidvania · 2D · Atmospheric

TUNIC
Shared: Metroidvania · Cute · Exploration

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

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

Nine Sols
Shared: Metroidvania · 2D · Difficult

Momodora: Reverie Under The Moonlight
Shared: Metroidvania · 2D · Exploration

Sanfu
Shared: 2D · Mystery · Colorful

The Witness
Shared: Colorful · Atmospheric · Exploration

ENDER LILIES: Quietus of the Knights
Shared: Metroidvania · Atmospheric · 2D

Salt and Sanctuary
Shared: Metroidvania · 2D · Difficult

Stray
Shared: Atmospheric · Cute · Exploration

Hyper Light Drifter
Shared: Atmospheric · Difficult · 2D

The Swapper
Shared: Atmospheric · 2D · Metroidvania

Pronty
Shared: Metroidvania · Atmospheric · 2D

Crypt Custodian
Shared: Metroidvania · Atmospheric · Cute

Firewatch
Shared: Atmospheric · Mystery · Adventure

LIMBO
Shared: Atmospheric · 2D · Indie

SUPER CHICKEN JUMPER
Shared: 2D · Difficult · Cute

Aeterna Noctis
Shared: Metroidvania · 2D · Difficult

Outer Wilds
Shared: Mystery · Atmospheric · Exploration

Dead Cells
Shared: Metroidvania · 2D · Adventure