What's better than mowing down (virtual) alien hordes with a buddy sitting right next to you? When it comes to video games, not much. That's why the fine Finnish folks at developer Housemarque are adding local co-op to the top-down, xenophobic shooter Alienation next week. Come July 5th, up to four players can join in on the same-screen mayhem according to a post on the studio's blog. That's not all either, because the update also brings in a competitive play system dubbed "leagues," and a pair of crushing new difficulty levels for the folks who could probably play the game with their eyes shut by now.