I first know about tower defense is at Battle.net Starcraft and I could play hours on one2 single map alone. They are just great computer games that are made my the community. As flash game are able to have more function and graphics, their Tower Defense are just as good, but there are yet to have any multiplayer tower defense where teamwork is very very important.

Yes, I completed the easiest level. Will try the other level.

Play Tower Defense Flash Game