So named because of, well, all the crack. Some say it's because of the crack in between the two main rooms (we don't know whether it got bigger in the most recent EarthQuake near HarveyMuddCollege), but most will tell you it's because of all the AsheronsCall, StarCraft, and other VideoGames played here on a regular basis by its members. These games are usually referred to by their Crack names, which are AsheronsCrack? and StarCrack respectively.
Of course, there's also the original Crack, SettlersOfCatan, which GregMulert introduced to the dorm last year. His plans to use it to take over the world were proceeding nicely until a new bunch of frosh arrived and everyone stopped playing. (Read: the "crack" was brutally stamped out by a bunch of MeanieHeads at the beginning of the year)
And we mustn't forget the MacActionCrack?, which includes PathwaysIntoDarkness? (also known as that game where you move very, very slowly), MarathonOne?, MarathonTwo?, and MarathonInfinity?. Frog blast the vent core!