Games like Two Souls
Games like Two Souls include Celeste, Webbed, Super Meat Boy, Downwell, and FEZ. We matched them by the tags players give Two Souls on Steam (2D Platformer, Puzzle Platformer, Pixel Graphics, Precision Platformer, and Puzzle): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Pixel Graphics · 2D Platformer

Webbed
Shared: 2D Platformer · Pixel Graphics · Puzzle Platformer

Super Meat Boy
Shared: Precision Platformer · 2D Platformer · Pixel Graphics

Downwell
Shared: Pixel Graphics · Precision Platformer · 2D Platformer

FEZ
Shared: Pixel Graphics · Puzzle · Platformer

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Leap Year
Shared: 2D Platformer · Puzzle Platformer · Precision Platformer

Trine 2: Complete Story
Shared: Puzzle Platformer · 2D Platformer · Platformer

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

VVVVVV
Shared: Pixel Graphics · Precision Platformer · 2D Platformer

Laughing to Die
Shared: 2D Platformer · Puzzle · Puzzle Platformer

ANIMAL WELL
Shared: Pixel Graphics · Puzzle Platformer · Puzzle

SANABI
Shared: Pixel Graphics · 2D Platformer · 2D

ElecHead
Shared: Puzzle Platformer · Pixel Graphics · Puzzle

Mind Over Magnet
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Pizza Tower
Shared: 2D Platformer · Pixel Graphics · Platformer

Moonleap
Shared: Puzzle Platformer · Pixel Graphics · Puzzle

Thomas Was Alone
Shared: 2D Platformer · Puzzle Platformer · Platformer

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Out There Somewhere
Shared: Pixel Graphics · Platformer · Puzzle

Squishy the Suicidal Pig
Shared: Puzzle Platformer · Puzzle · Pixel Graphics

CATO: Buttered Cat
Shared: Puzzle Platformer · Pixel Graphics · Puzzle

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer