There is no shortage of tower defense games on WP7 ( don’t believe us check these out My Little Tower Defense, Bye Bye Brain, Crackdown2 Project Sunburst, Star Wars Battle for Hoth, etc ) and then there are hand drawn games like Scribble defense ( which BTW is also a tower defense game ) and now there is a new game for WP7 that brings the fun hand drawn experience on to the strategic tower defense genre.

Please keep in mind that this is only an early look at the alpha version of Sketch Defense for WP7. In the gameplay video we can see 5 defense towers in action : Shoot, Laser, Slow, Arc and Disc. A boost tower is also available but it was not showcased in video demo.

Update 29/09/2010 : The developers have added a development blog http://sketchdefense.blogspot.com/, they have added some background images for the first four levels.