Throbax TD

Throbax TD is a "Tower Defense" game with a twist. You have to survive wave after wave of fiendish enemies in a struggle for nothing less than your whole planet. We wanted the game to have an immersive story and the first half of it to be a circle-tower-defense-game, meaning that the monsters will not vanish in a portal of some sort, but stay on the screen until you have destroyed them, or there are 100 of them on the screen (in which case you have lost). But other than that, no bells and whistles, just basic action, but neatly balanced, good controls and not too easy.