Games like SPLIT
Games like SPLIT include Celeste, INSIDE, Thomas Was Alone, Trine 2: Complete Story, and Super Meat Boy. We matched them by the tags players give SPLIT on Steam (Precision Platformer, Casual, 2D Platformer, Puzzle Platformer, and Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · 2D Platformer · Platformer

INSIDE
Shared: Puzzle Platformer · 2.5D · Atmospheric

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

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

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

Trine Enchanted Edition
Shared: Puzzle Platformer · 2D Platformer · Colorful

Braid
Shared: Puzzle Platformer · 2D Platformer · Platformer

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

LIMBO
Shared: Puzzle Platformer · Platformer · Indie

Geometry Dash
Shared: Precision Platformer · Platformer · Colorful

GRIS
Shared: Atmospheric · Platformer · Indie

Little Nightmares
Shared: Puzzle Platformer · Atmospheric · Singleplayer

The Pedestrian
Shared: Puzzle Platformer · Platformer · 2D Platformer

FEZ
Shared: Platformer · Casual · Indie

Neva
Shared: Platformer · Atmospheric · Indie

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

FAR: Lone Sails
Shared: Atmospheric · 2.5D · Singleplayer

Golf Club Nostalgia
Shared: 2D Platformer · Puzzle Platformer · Casual

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Refunct
Shared: Casual · Puzzle Platformer · Platformer

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

Hue
Shared: Puzzle Platformer · Platformer · Indie

Nihilumbra
Shared: Casual · Platformer · Puzzle Platformer