OTU Only: Rolling up Subsectors using the LBB Rules

[Graham2001]

I am planning to hand-roll a subsector, using the original LBB rules and I wanted some advice on recommended numbers of systems/dice modifiers for Rift/'Average'/Dense subsectors, I am sure I read this detail in one set of Traveller rules, but I cannot remember which one.

Can anyone help?

 

[atpollard]

Book 6 (Scouts), page 25:

SYSTEM PRESENCE
Rift (density 4%): Throw 12+ on 2D per hex in a subsector.

Sparse (density 16%): Throw 6+ on one die per hex in a subsector.

Scattered (density 33%): Throw 5+ on one die per hex in a subsector. The
Spinward Marches has this density.

Standard (density 50%): Throw 4+ on one die per hex in a subsector.

Dense (density 66%): Throw 3+ on one die per hex in a subsector.

 

[Nihilistic_Impact]

In Book 3, page 1, of the 77 Traveller:

The referee may elect to alter the normal chances of worlds, making them more frequent or less frequent to correspond to specific regions of the galaxy. This is easily accomplished by imposing a DM of +1 or -1 on the whole subsector, or on broad areas within a subsector.

 

[Graham2001]

Book 6 (Scouts), page 25:

Thanks, that will be very useful.