One of the more unique tower defense titles that's been released this year, Plant This! is a highly-stylized, maze-based strategy game. Instead of featuring a pre-defined path for "creeps" to follow like we see in most tower defense games, it employs the "open field" design, in which you create the path by using your towers to corral the creeps down the map as inefficiently as possible.

The pickles are attacking! Run! And while you're running, why not set up a few defensive towers to take out the Horripickles and Fisquitoes chasing you? In Sandlot's latest game, Monster Mash, you must protect storybook villages and their people from evil fairy tale monsters. It's a tower defense game with artwork, characters and plot taken right out of a children's book, and it's every bit as surreal as you might think.

As evidenced by a flood of Flash-based titles in the last year or so, tower defense games are all the rage. Now, iWin is throwing its hat in the ring with Garden Defense, a full-blown downloadable tower defense game where you save your garden using gnomes, flamingos, cupid statues and a host of plants to fight off waves of attacking bugs. It's eat or be eaten in this easy to learn but surprisingly challenging strategy game!