The first thing that came to my mind was:
Damn another TD. Well let's give a try, it might be fun.
Then I started playing it, and it was awesome.
There is an actual story behing the game, a nice way to upgrade your towers (instead of just pushing the upgrade button, you add the abilities you want to the tower you want, it's just great).
You can change the place of your towers during the game, they just need 10sec to reload.
It's by far one of the best TD I've play around here.
Thanks a lot for the great work CoreSector.
 "Ghost Hacker"){kind=icon}
 "Learn to Fly"){kind=icon}