I just typed a long response and then groups botched. Here's my proposal, since I'm going to get a graphic designer to do a good-looking map for us: Spots for 6 players, (meaning one open spot at present,) with 3 starting systems and 9 unoccupied systems in the near vicinity to expand to. A beltway of jump routes around the system. A bit of blank space around the center - essentially just a wide swath that will require a big ship to make the initial jump. If we have 72 systems on the outside, we'd have 24-36 mining systems in the interior? Each system has a Raw Material & a Development stat, each from 1-6. Aside from a grid/coordinates for each system (so we can figure jump ranges/distances) and system names, what other things would the map need?