"The dataset contains practically all actions of all
players of the MMOG Pardus since the game went online in
2004 [18]. Pardus is an open-ended online game with a world-
wide player base of currently more than 370,000 people. Play-
ers live in a virtual, futuristic universe in which they interact
with others in a multitude of ways to achieve their self-posed
goals [22]. Most players engage in various economic activities
typically with the (self-posed) goal to accumulate wealth and
status. Social and economical decisions of players are often
strongly influenced and driven by social factors such as friend-
ship, cooperation, and conflict."
quite impressive ...