Botanicula (by the designers of Samorost and Machinarium)

Anyone tried this?

http://amanita-design.net/games/botanicula.html

A truly wonderful game that's bundles of fun - nice and quirky, really funny and nice and quirky. Lovely graphics and music too.

Dead cheap too - pay what you like by buying it as a Humble Bundle:

http://www.humblebundle.com/

Available for PCs, Mac and Linux.