At the pinnacle of the genre
I've always been a fan of tower defense games. They are funa and challenging. In the past few months i have been playing a variety of tower defense games i have not beaten. They were all simple in mechanics and strategy, offered little in variety and game length, and in the end just didn't entertain.
Although i really like the ability to create your own path for enemies to go through (xeno tactic, warzone TD), the variety of user-abilities, and the depth of the strategy of this game well make up for the predetermined path.
And i really appreciate the difficulty. Easy TD games are not fun. Not for long. You really have to give it all you've got to beat this game.
The length of the game, experience system and an indeterminable number of other features add up to make this simply one of, if not the best TD games ever made. Bravo for making such a great game and thank you for sharing it with us.