Sigil (named after a city in D&D lore) isn't the first of its kind. BouncyRock Entertainment's TaleSpire is a popular 3D VTT currently in early access for PC and Mac.

At the heart of the multiverse lies Sigil, the City of Doors. Sigil is the place where every single D&D campaign can be connected if you just find the right portal at the right time.

Black Sigil tells the story of Kairu, a cursed boy who was born without the ability to use magic. Fifteen years earlier, Kairu's father saved his land from the evil Vai, the only other man in Bel ...