Plague Inc. is one of the most popular strategy games on the App Store: It's a title with the gory premise of you controlling a plague running around the world, trying to infect as many people as possible before the rest of humanity can come up with a cure. The game's latest update is out this week, and it adds a new virus to play with called the "Necroa" virus. This virus reanimates dead people and causes them to want to attack the living -- in other words, it creates zombies, and the update comes with an extra opposition force called Z Com to mix up the strategy a little bit.
But even more interesting than the new update to the game is how it's b