Okay, so my sources tell me there's a new trend in video games that's quite popular online. It must've started by some high school math teacher or student, who one day decided that rather than worrying about identifying Y so we could understand exactly how X got from A to B, we should instead worry about arming Y to prevent X from getting from A to B. The developers at MrJoy apparently got more out of senior math than I did, as they've now presented us with Hordes of Orcs. Here, A is "The Glowing Portal of Really Bad Things That We Should Have Bricked-Up a Long Time Ago" and B is your village. Y is an assortment of defense towers, walls and spells, and X is...well...a horde of orcs.