D18 Sphere This is a Truncated Sphere D18.
The numbering has been done very carefully. Of course, numbers on opposite faces sum to 19. This leads to the fact that the 8 numbers around any of the 3 diameters sum to 76. But the dificulty has been the have the 6 numbers surrounding a spherical zone to sum to 57. It works for all the 8 zones (for instance, in the rendering - the brown one - you can see: 18 + 3 + 13 +11 + 7 + 5 = 57).
See
this thread for more informations.
Available Truncated Sphere Dice:
D1,
D3,
D4,
D5,
D6,
D7,
D8,
D9,
D10,
D%,
D11,
D12,
D13,
D14,
D15,
D16,
D17,
D18,
D19,
D20,
D24,
D32,
D33
Alternative shapes:
alt D6 (3-fold),
alt D7 (2-fold),
alt D8,
3-fold D10 (rounded),
3-fold D10 (pointed),
4-fold D10,
5-folded D10 (pointed),
Optimal D11,
alt D24 (snub)
Coming soon: D21,
D22, D23,
D50
Related dice:
Concave D4,
Concave D6,
D3 Shell,
D4 Shell,
D6 Shell,
D8 Shell.
A mass-produced version is now available for $2 at Impact! Miniatures: