4/5
As far as tower defense games go, I find this to be well above average.
While not breaking any new ground - in fact, treading the same old, tired "zombie" genre of gaming - it does provide a fun, easily engaging, and visceral experience.
The zombie deaths are satisfying and the overall gameplay is good. It did cause some lag on my laptop, since it is graphic intensive to a degree. But i can't fault the developer for my less than state of the art hardware. i would've liked a "quality" control in order to turn the graphic "down", as it were.
This is a fun game and worth a play for anyone that enjoys TD games or just wants to kill a few zombies.