In honor of Friday the 13th, Tweet Defense and Tweet Defense HD are on sale! Snag them for under $1 each! Tweet Defense HD will make you fall in LOVE with gaming on the iPad. This newly updated and enhanced version of the hit tower defense game features:

Razor sharp, stunning HD graphics.
Revamped user interface that takes advantage of the iPad's huge screen.
New booster tower feature that shows you who's helping you destroy the zombie horde.
Improved difficulty balance.

Tweet Defense was featured on the "New and Notable" and "What's Hot" sections of the appstore and it is the perfect game to play on an iPad. Take command of deadly homemade defense towers and conquer the zombie clones that threaten all of civilization! Here's what people had to say about Tweet Defense:

"Fantastically addictive" - RobFellows

"Made me a fan of tower defense games!" - Breego

"what you've got here is a solidly entertaining tower defense game, with a nice little twist: Twitter integration!" - Gizmodo

"Experience the thrill of social networking and casual gaming convergence with Tweet Defense" - Kotaku

"…a bunch of cool new features not seen in other Tower Defense games" - The Bit Bag

"a brand new and highly 'original' TD game that makes use of Twitter in a big way." - Touch My Apps

"one of the best uses of modern day social networking" - TheTanooki

"It’s like an infinite time sink which connects two enormous time wasters – Twitter and tower defense. In other words, it’s beautiful." - Mashable

"Without a doubt, this iPhone app has one of the most curious and unique social integrations we have seen to date. Moreover, the game is actually fun and more than just a gimmick." - Inside Social Games

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You DO NOT NEED A TWITTER ACCOUNT to enjoy Tweet Defense, so don't feel left out if you aren't up on Twitter.
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Tweet Defense tosses ridiculous killer zombies and your twitter stats into a tower defense blender for a delicious brainy, viral juice mix.

10 incredible levels that build from easy walk in the park to devastating horror show
5 whacked out enemy types including the viral marketing zombie and the lumbering massive Blubberbie
6 tower types including the new brain shock tower that turns your enemies against each other and the unique BOOSTER tower that lets you use selected twitter celebs to boost your tower stats.

We wondered what it would be like to take your social network and all your activities and turn it into a game.

This isn't just a twitter client that lets you tweet your score. This is a full on tower defense game that uses your friend list and your tweeting activity to impact how powerful your towers are.

The story:
“A lethal marketing virus has turned half the world's population into brain eating zombies. Now they are after you and your friends' brains!

All you have on hand are every day items and an internet connection. Reach out to your Twitter friends to help you build defense towers out of every day items. Stop the zombies from penetrating your home base and eating your grey matter!

With your friends manning the towers and your brilliant battle strategies the zombies don't stand a chance … or do they?”

TIPS

Remember to upgrade your towers to have an easier time defeating the zombies.