Games like Soul
Games like Soul include Katana ZERO, Skul: The Hero Slayer, Hollow Knight, SANABI, and Momodora: Reverie Under The Moonlight. We matched them by the tags players give Soul on Steam (Action, Platformer, JRPG, 2D Platformer, and Idler): closest matches first, and among equally close ones the better-known games.

Katana ZERO
Shared: Action · Platformer · 2D Platformer

Skul: The Hero Slayer
Shared: Action · Platformer · Indie

Hollow Knight
Shared: Platformer · Metroidvania · Exploration

SANABI
Shared: Action · 2D Platformer · Pixel Graphics

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Metroidvania

Rogue Legacy
Shared: Platformer · Action · Metroidvania

Rogue Legacy 2
Shared: Platformer · Action · Metroidvania

Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Exploration

Ori and the Will of the Wisps
Shared: Platformer · Action · Metroidvania

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

Axiom Verge
Shared: Platformer · Action · Metroidvania

Broforce
Shared: Action · Platformer · Pixel Graphics

The Messenger
Shared: Platformer · Action · Metroidvania

Blasphemous
Shared: Metroidvania · Action · Platformer

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

Anomaly Agent
Shared: 2D Platformer · Platformer · Side Scroller

BLADECHIMERA
Shared: 2D Platformer · Platformer · Side Scroller

Blasphemous 2
Shared: 2D Platformer · Metroidvania · Side Scroller

Rain World
Shared: Platformer · Exploration · 2D Platformer

Prince of Persia The Lost Crown
Shared: Action · 2D Platformer · Exploration

Blade Assault
Shared: Action · Platformer · 2D Platformer

Gato Roboto
Shared: Action · Platformer · Metroidvania

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics