In order to celebrate his birthday, the developer of Immortal Defense has announced that it will be available through October 4th (this Sunday) for the low price of $3. All you have to do is order the game and, at the payment prompt for BMT Micro, enter the code BMCN000H7 in the coupon/discount area. You will then receive a download link through email. Ordering is done through the site, and if you want to try before you buy, there is also a demo that includes a full third of the game's levels for you.

For those that have no idea what Immortal Defense is, it is an independent tower defense game. It combines unique gameplay through the different towers and the player cursor with a truly affecting and disturbing story. We mean it. This game might give you nightmares, but the depth of its meaning definitely makes it worth playing. There's a reason we included it in our list of the best indie games to buy in holiday 2008, after all.