These are 3 dimensional sector maps for Traveller. They retain the scale of 1 parsec to a hex but add a vertical dimension, also 1 parsec per step up or down.
This latest addition is a sector 10 parsecs in each direction, whereas the previous file is for a sector 6 parsecs across. The pdf has instructions for populating the sector map. In the 10 parsec version you will, on average, find about 200 star systems within the sector volume. That is a lot of adventuring space.
One thing to note in both 3D maps is the increase in the number of potential connections between star systems for any given jump distance. In a 2D map, for example, there can at most be 6 jump-1 connections to a star system, but in 3D there can be 8. Also trade and communication routes that go off map in the vertical dimension are somewhat harder to note than ones that go off map on the horizontal plane.
Starting to use this with my new Mongoose 2e campaign
. Stay tuned...
Here is the area around the players starting system: