"This sounds like classes in an MMO." -
Based off from the Myer-Briggs Type Indicator/Keirsey Temperamental Sorter. It pretty accurate personality test that you usually get around to do it in school or online. I did mine at school. I was INTP.
"INTPs are quiet, thoughtful, analytical individuals who tend to spend long periods of time on their own, working through problems and forming solutions. They are curious about systems and how things work. Consequently, they are frequently found in careers such as science, architecture, and law. INTPs tend to be less at ease in social situations or in the "caring professions," although they enjoy the company of those who share their interests. They prize autonomy in themselves and others. They generally balk at attempts by others to convince them to change. They also tend to be impatient with the bureaucracy, rigid hierarchies, and politics prevalent in many professions. Titles and badges mean little to the INTP; these represent authority, which INTPs usually come to distrust as illogical and unjustified by the time they reach adulthood. INTPs accept ideas based on merit, rather than tradition or authority. They have little patience for social customs that don't seem to have a logical explanation. This may place them at odds with people who have SJ-based personalities, since SJs tend to defer to authority, tradition, and what the rest of the group is doing. INTPs prefer to work informally with others as equals."