Planewalker's Guild
A wondrous story engine if you want a planar game but without everything that comes with Sigil, today we have the Planewalker's Guild, the little-noticed explorer's club based upon the Infinite Staircase.
Formerly a powerful organization, respected almost the multiverse over for its knowledge and experience, the Planewalker's Guild today is but a shadow of its former self. Displaced by the rise of the factions, it consists today of a small number of resolute members, insistent on promoting the exploration of the planes, each for their own reasons. Today, its headquarters can be found upon the Infinite Staircase, a crossroads perhaps less well-known than Sigil, but no less functional. It is lead presently by Hav'run Thain, a minotaur from the world of Krynn, and his everpresent companion, the Vagis.