I run long, long games.  My systems have been built for it.

And I did not know this was going to translate into the online world.  My Steel Isle online game, which was just an experiement, just hit session 141.  

My next project is described by a certain sick desperado (one of my best players, coincidentally) as "Hogwarts goes to Hell".  It is called 'The Collegium Arcana Arc", and is something I have been mulling over for about a year, and I think will be starting in the next month or so.  I am looking at playing once every other week.
I switched over to roll20.net recently, and so when this one launches, I expect to be playing there.  I am posting this more as general knowledge and for feedback than as an open game, though who knows...

From Here.  The link has a bit more info by way of more embedded links.

The Collegium Arcana game is set in the Islip level of the school of the same name, in Stenron, capital of the Grey March.  The players take the place of Dexdemitan (First cycle, or Cycle one) students, and will play out the campaign primarily as students in this school.  The play centers around their coming to the school, and will include in-class time (bits and pieces of it), field trips and labs and study, as well as a number of sub-plots.    


After deliberation and conversation with a few regular gamers, there will not be a set mechanic for making time pass quicker, though that option will come up more than in most other GuildSchool games. Based on past campaign arcs, this system is best built for longer games, so we are embracing that. If it turns out to be yet another game that goes on and on, what is the negative in it? Also, due to the way we play our online games, this should to some degree allow for PC's to come in later or take a break if they wish.
 

Due to the unique experience mechanic of GuildSchool, we can start these fledglings with less experience that a normal starting character.  We will use only 3000 xp as a starting point, as opposed to the normal 5000.  This means choices are very important and many tougher skills may not be wise choices in the beginning.  However, since the players will be taking classes and learning, as well as taking tests, they will gain experience and actually have the opportunity to learn new skills as part of the game, using the skill kit mechanic but much of their success in learning the skill based on their classroom performance.


There will be other adjustments, such as the ability to reroll the basic characteristcs if there is no intelligence, wisdom, or charisma at 16 or over.  There is a separate social Acquistion chart, and there will be many more arcane schools available.


Set in the ancient, original mother-house of the Collegium, in the hoary Winterloo District of great Stenron, the players will deal with over thirteen thousand other school members, with teachers, students, graduates, and others.  As Stenron is the largest city in Celtricia, the district alone has some forty-five thousand total inhabitants.  When looking at a rough map of the fabled city, one sees to the north of the Winterloo district is the Godstraat district of Stenron, which is actually the original Godstraat, with literally hundreds of shrines, temples, and churches.  To the south is the Klaxik and human neighborhood of Oberlin, where much of the trade is set up.  

 
The game will start on Hisieohum the first, in 895 RON.  The students will be arriving in the main, huge entrance chamber of Quinneg Hall. The older students are all getting comfortable, but the Dexdemitan, or 'Dexies', as they are refered to, are all quiet and clustered in the center of the high-ceilinged, stone hall.