On 11/12/2017 10:36 PM, Amber Witherspoon wrote:
> My brain attached itself to a "Spelljammer" type Traveller setting.
> For those who don't know, Spelljammer was an AD&D setting that
> connected all their settings via a fantastic cosmology based on
> crystal spheres that held systems and an ether like substance that
> flowed in currents between them.
> Right now, I'm looking at something similar - magical sailing ships
> traveling between systems on ether currents, with the ether currents
> stacked in layers that occasionally connect (thus allowing 3d space to
> be shown as a series of 2d maps).
> Right now, I'm trying to figure out a mapping system that allows for
> random generation of systems and currents that doesn't create a mess.
> Currently (hah!), I know I want systems on 8+, but the currents are a
> bit messy - I have three possibilities:
> 1: roll for currents first - direction of flow, length, and travel
> time, splits, if it goes between layers, then roll systems with
> off-current hexes having a penalty.
> 2: roll systems first, roll for current off each hex face, then
> length, travel time, splits, etc.
> 3: roll systems first, then connect every system (not sure my tables
> for that yet) with a current and roll travel time for each. >

	I'm assuming you don't want something this complex:

	http://wiki.travellerrpg.com/images/2/2a/Spinward_Marches_Sector.pdf

	In Book 3 there is a trade route generation table, which gives a way to decide
if there is a trade route (a flow) between two worlds. If you are going to use
option 1 (as Tim suggested) I would simply extend the table to include a flow rate.

	Another option is, if you have access to it, either Grand Survey or World
Builder's handbook (the DGP books), the have a system for generating the
tectonic plates on a world, this would include directions and flow rates for
different areas of the map.

--
         Thomas Jones-Low
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