Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.
The Swapper - The Swapper is an Amazing, 2D, Science-Fiction, Puzzle, Platformer, Action-Adventure, Side-scrolling, Exploration, and Single player Space video game by Olli Harjola, Facepalm Games.
Botanicula - Botanicula is a point-and-click adventure game developed by Amanita Design.
Machinarium - Machinarium is independent puzzle / adventure game by Amanita Design
A Walk in the Dark - A Walk in the Dark is one of the most addictive and quite challenging Action, Puzzle-Platform and Adventure video game that takes you on an amazing journey in the world of wonders.
World of Goo - get it here | read the blog | forum.