Games like Splatformer
Games like Splatformer include Webbed, Öoo, Braid, Thank Goodness You're Here!, and Leap Year. We matched them by the tags players give Splatformer on Steam (2D Platformer, Puzzle Platformer, Parkour, Exploration, and Time Management): closest matches first, and among equally close ones the better-known games.

Webbed
Shared: 2D Platformer · Puzzle Platformer · Exploration

Öoo
Shared: Puzzle Platformer · 2D Platformer · Exploration

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Thank Goodness You're Here!
Shared: 2D Platformer · Exploration · Funny

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

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

ANIMAL WELL
Shared: Exploration · Puzzle Platformer · Puzzle

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

ANTONBLAST
Shared: 2D Platformer · Exploration · Puzzle Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Funny

Portal 2
Shared: Puzzle Platformer · Puzzle · Platformer

FEZ
Shared: Exploration · Puzzle · Platformer

Portal
Shared: Puzzle Platformer · Puzzle · Funny

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

Human Fall Flat
Shared: Puzzle Platformer · Puzzle · Funny

KarmaZoo
Shared: 2D Platformer · Puzzle Platformer · Puzzle

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

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

Supraland
Shared: Puzzle Platformer · Exploration · Puzzle

Refunct
Shared: Parkour · Puzzle Platformer · Platformer

BattleBlock Theater®
Shared: Platformer · 2D Platformer · Funny

Defy Gravity Extended
Shared: Puzzle Platformer · Platformer · Puzzle

Chained Together
Shared: Puzzle Platformer · Platformer · Casual

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