It’s an unholy, if intriguing, mix. Twitter, gaming and, um, zombies.

‘Tweet Defense’ is an iPhone app and a classic tower-defence title with a twist. It boosts the strength of your defences using information from your Twitter account – so the more you tweet and the more people you follow (and follow you), the more likely you are to destroy the zombie horde. So whether you want to kill time by slaying zombies or by sharing your thoughts with theweb, this is the app for you.