This is a gnomonic projection of the Mystara World on the faces of a cube. Mystara is a campaign setting for the Dungeons & Dragons fantasy role playing game. It was the default setting for the "Basic" version of the game throughout the 1980s and 1990s.
Inspiration from:
https://d3js.org/d3.v4.min.js
https://d3js.org/topojson.v2.min.js
https://d3js.org/d3-geo-projection.v2.min.js