Games like Faux
Games like Faux include Hollow Knight, Nine Sols, Hollow Knight: Silksong, Blasphemous, and Super Meat Boy. We matched them by the tags players give Faux on Steam (Action, Indie, Gore, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Indie · Difficult

Nine Sols
Shared: Action · Platformer · 2D

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

Blasphemous
Shared: Gore · Indie · 2D

Super Meat Boy
Shared: Indie · Platformer · Difficult

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Broforce
Shared: Action · 2D · Platformer

Cuphead
Shared: Difficult · Platformer · Indie

Katana ZERO
Shared: Action · Platformer · Indie

My Friend Pedro
Shared: Action · Indie · Gore

Geometry Dash
Shared: Difficult · 2D · Platformer

Hotline Miami
Shared: Action · Indie · Gore

Salt and Sanctuary
Shared: Action · 2D · Difficult

Slain: Back from Hell
Shared: Action · Gore · Indie

Hotline Miami 2: Wrong Number
Shared: Gore · Action · Difficult

Valfaris
Shared: Action · Indie · Gore

Celeste
Shared: Indie · Difficult · Platformer

Spelunky
Shared: Platformer · Indie · 2D

Risk of Rain (2013)
Shared: Indie · Action · Platformer

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

CARRION
Shared: Gore · Action · Indie

Mark of the Ninja: Remastered
Shared: Action · Indie · 2D

Rogue Legacy 2
Shared: Action · Platformer · Indie

Volgarr the Viking
Shared: Action · Platformer · Indie