While the most common uses of cores like this is to spin up “blizzlike” servers or “funservers” that use the original content but with boosted XP, loot, etc multipliers, to me what makes them interesting is when combined with client modding, the possibility of custom content — new zones, quests, loot, races, classes, and with some ingenuity even new systems.<p>They’re good foundations to build on. One would be hard-pressed to find an MMO client+server that’s as polished and complete.<p>The legal risks involved make it too risky for anybody within Blizzard’s reach to do anything but private tinkering with, unfortunately. It makes me wish for legislation that makes non-commercial game modding and reverse engineering strictly legal.