Games like Klaus Lee - Thunderballs
Games like Klaus Lee - Thunderballs include Planet of Lana, LIMBO, Portal 2, Defy Gravity Extended, and Pizza Tower. We matched them by the tags players give Klaus Lee - Thunderballs on Steam (Puzzle Platformer, Old School, 1980s, Action, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

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

LIMBO
Shared: Puzzle Platformer · Indie · 2D

Portal 2
Shared: Puzzle Platformer · Singleplayer · Puzzle

Defy Gravity Extended
Shared: Puzzle Platformer · Action · 2D

Pizza Tower
Shared: 2D Platformer · Action · Indie

ANTONBLAST
Shared: Action · 2D Platformer · 2D

Braid
Shared: Puzzle Platformer · 2D Platformer · 2D

A Dance of Fire and Ice
Shared: Level Editor · Singleplayer · Arcade

Geometry Dash
Shared: Level Editor · 2D · Singleplayer

SANABI
Shared: Action · 2D Platformer · 2D

UFO 50
Shared: Action · Arcade · 2D

Rogue Legacy 2
Shared: Action · Arcade · Indie

BattleBlock Theater®
Shared: Level Editor · 2D · Action

Portal
Shared: Puzzle Platformer · Singleplayer · Puzzle

Oozi: Earth Adventure
Shared: Old School · 2D Platformer · Action

Celeste
Shared: 2D Platformer · Indie · Singleplayer

Oddworld: New 'n' Tasty
Shared: Puzzle Platformer · Action · Adventure

Human Fall Flat
Shared: Puzzle Platformer · Action · Adventure

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

Shovel Knight: Treasure Trove
Shared: Action · 2D · Indie

Exit the Gungeon
Shared: Action · Arcade · Indie

Kung Fury: Street Rage - Ultimate Edition
Shared: Action · Arcade · 1980s

Out There Somewhere
Shared: Action · 2D · Puzzle Platformer

Antonball Deluxe
Shared: Puzzle Platformer · Arcade · 2D Platformer