Games like The Flame and the Fart
Games like The Flame and the Fart include Hollow Knight, Dust: An Elysian Tail, Hollow Knight: Silksong, Dead Cells, and Blasphemous 2. We matched them by the tags players give The Flame and the Fart on Steam (RPG, Metroidvania, 2D Platformer, Platformer, and Adventure): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · 2D

Dust: An Elysian Tail
Shared: Metroidvania · Platformer · RPG

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

Dead Cells
Shared: Metroidvania · Adventure · 2D

Blasphemous 2
Shared: Metroidvania · Adventure · 2D Platformer

Castlevania: Belmont's Curse
Shared: Metroidvania · 2D Platformer · RPG

Rogue Legacy 2
Shared: Metroidvania · Platformer · RPG

Deaths Gambit: Afterlife
Shared: Metroidvania · RPG · Pixel Graphics

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

UnEpic
Shared: RPG · Metroidvania · Platformer

Rogue Legacy
Shared: Platformer · Metroidvania · RPG

Shattered Divinities
Shared: Metroidvania · Adventure · RPG

The Messenger
Shared: Metroidvania · Platformer · Pixel Graphics

Chasm
Shared: Metroidvania · RPG · Adventure

SANABI
Shared: 2D Platformer · Pixel Graphics · Adventure

Blasphemous
Shared: Metroidvania · Pixel Graphics · 2D

F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Platformer · 2D Platformer

Owlboy
Shared: Metroidvania · Adventure · Platformer

Salt and Sanctuary
Shared: Metroidvania · RPG · 2D

Momodora: Reverie Under The Moonlight
Shared: Metroidvania · 2D Platformer · Pixel Graphics

Bloodstained: Ritual of the Night
Shared: Metroidvania · RPG · Adventure

CrossCode
Shared: RPG · Action RPG · Pixel Graphics

Rain World
Shared: Platformer · Pixel Graphics · 2D

Dragon's Dogma 2
Shared: RPG · Action RPG · Adventure