Machinarium - Machinarium is independent puzzle / adventure game by Amanita Design
Tanglet - Tanglet is a single player word finding game based on Boggle.
Unmechanical - Fun and atmospheric side-scrolling puzzle adventure.
Crosswords Arena - Word game, multiplayer and computer players
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.
Quackle - Open-source word game similar to Scrabble. Features a board editor, analysis tools, and artificial intelligence that rivals the best players in the world!