Well this is some pleasant, albeit old, news. Defend Your Castle and 2360: Battle for Cydonia are being offered for free on the App Store for who knows how long. Both are quality titles; one obscured by its clone StickWars, and the other just obscure. 2360: Battle for Cydonia received our Must Have rating from Matt, so it’s definitely something that should be picked up.
Defend Your Castle, while it hasn’t been reviewed, is definitely worth the time to download. Both games are, again, available for free on the App Store. Pick them up while you can, as it seems the sale won’t be lasting too long.