Summary: A good concept, but so poorly executed that it's not worth playing. Physics based puzzles with inconsistent physics and interrupted by unusable controls. Seems to be aimed toward children, but I imagine they'd find it too frustrating to stick with. Poor graphics. Almost no appeal. Worth avoiding even for free.
Summary: While this game is certainly good, it is not at all a "great" game. For what it is, it is an appealing, if easy, puzzle game. I would recommend it to younger gamers, though anyone could sit down and enjoy the game. However, this is not an indie game that ranks with the likes of Braid, Limbo or Super Meat Boy, who were able to pull off games that were incredible by any standard, not just "great, for an indie developer" or even "great, for the price".
Summary: Suitable for any age of gamer, Doc Clock insists on being one of the most fun adventure-platforming games of 2010. With unique and puzzling physics elements, easy to use controls and very interesting and innovative graphics, all combined with great humour from a cynical robot, gamers could do far worse than to spend the cheap amount developers have requested for Doc Clock.