WhatGravitas
Explorer
The 15-sided column can be rolled along its length, so you never get the top or bottom. If you include top and bottom as sides, you need to get the ration of sides along the radius and top and bottom in the exact ration, that you have an equal chance to get either side. To do that, you need to add extra sides along the rim, similar to the die shown here.jeffh said:Why not just do 11 around the radius plus the top and bottom?
Doing it the column-way (as here) is much easier, reliable and cheat-proof.
You know that d16 are out there?Lord Fyre said:Actually, it is about time. We have long needed something to fill that vast gulf between the d12 and the d20! :rofl:

BTW: I love Kevin Cook's homepage... I need to find his ENWorld-thread again...!
Cheers, LT.