Looking for a good puzzle game for the whole family? Tinker is a simple yet challenging game where you have to help a robot find his way out of a maze. The levels get progressively more challenging, and the in-game animations are always delightful.
Microsoft Tinker, which was previously available only on Vista Ultimate, is now available as a free download for all versions of Windows including XP, Vista (all editions) and Windows 7. The game is also integrated with Windows Live so you can chat with friends from the game itself.
Source : Digital Inspiration - Technology Blog