If $20 was too high an asking price for the iOS serving of XCOM: Enemy Unknown, good news: the game's currently half price, at just $10. What's better is that it's just received an update as well, which adds multiplayer functionality, iOS 7 optimization, and deeper leaderboard stats. We'd personally suggest playing the game on an iPad, and we'd also suggest setting aside a fair share of your upcoming free time. And maybe some of your occupied time. What we're trying to say is "be concerned about the next few weeks after buying XCOM."