Simple, challenging, fun. It’s one of the visually appealing tower defense titles that have graced apple’s doors in a while. Every tile, every tower, fits together perfectly and looks quite attractive. The gameplay is challenging yet fair, and their are plenty of randomly generated events to add some flair to any play through. If I were to make any gripes over it, I would say that the variety of enemies is somewhat lacking, and that their appearance is perhaps too simple against the backdrop of the towers. At a glance it can be difficult to really distinguish between one unit and another, and it would be nice to see something like dragons (perhaps flying in a straight line towards the defended block, and destroying towers as they go, with great reward for taking it down). The monochromatic color scheme of the enemy units is aesthetically pleasing, but they lack sufficient distinguishing markers in my view. A shield, or a beard, just seem a little too weak. Yet, this is a minor point, and besides it, i have found the game quite rewarding, both in play, and in visual appeal.