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D-Total by Dr. A. F. Simkin

Seventeen Dice in One

The revolutionary D-Total™ performs the functions of 17 different dice!

Die you want to roll

How to read the face:

Each die face is laid out like a clock face, so turn the die so all numbers (on the face rolled) are right-side up to you.



In the middle of the face, there is a number between 1 and 24.  If 12 or less, the d2 has rolled a 1.  If 13 or higher, the result is a 2.


The number of pips (spots) in the 3 o’clock position is the d3 result.


Result lies in a triangle (traditional d4 shape) at 4 o’clock position. 


Result is a Roman numeral (I-V) at 5 o’clock.  If numeral is not there, re-roll.


Result is in the square (traditional d6 shape) at 6 o’clock.


At 7 o’clock (bottom left) there may be a number (1-7) between the square and diamond shapes.  If not, re-roll to get the d7 result.


Result lies within a diamond (traditional d8 shape) at 8 o’clock.


In the middle of the face there is a number (1-24).  Roll until it lands on 1-20, and use the final digit for the d10 result. (A roll of 5 or 15 is considered a 5; a roll of 10 or 20 is considered a 10)


Result lies within the pentagon (traditional d12 shape) at 12 o’clock

*To read D20 and higher outcomes (except D24), re-roll the die if 21-24 is rolled.*


Result is the number in the center of the face*


The middle number on the face is the d24 result.


Uses D3 pips for 1st digit (1 pip=1-10, 2=11-20 and 3=21-30). Re-roll, using D10 method* for the 2nd digit. 1st roll (d3=2 pips) + 2nd roll (d10=7 or 17)=17 This method is also used for the D40 – D80, except for the additional ranges of tens.


Uses D4 triangle for 1st digit, with the method described above (but adding 4=31-40).  Re-roll using D10 method* for 2nd digit. [(d4=4)+(d10=16)=36]


Uses D5 (Roman numerals) for 1st digit (V=41-50), and D10 method* for 2nd digit (3 or 13=3).  For example, a III and re-roll of 3 equals 23.


Uses D6 square for 1st digit & D10 method* for 2nd digit. [(d6=6)+(d10=9)=59]


Uses D7 position for 1st digit & D10 method* for the 2nd. [(d7=7)+(d10=8)=68]


Uses the D8 diamond for 1st digit (8=71-80) and D10 method* for 2nd.  For example, when D8=8 and the D10 re-roll =4 or 14, the result is 74.

©Dr. A. F. Simkin, 2007. Edited by GameScience, 2008.

The D-Total Story

            In 2005, Dr. A. F. Simkin mailed a beautifully hand-crafted prototype of a new 24-sided shape to Louis Zocchi.  Dr. Simkin explained that if this shape were produced, he could generate an imprinting pattern which would allow the die to simulate the rolling of seven other shapes. At the same time, Kevin Cook, who holds the Guiness World Record for having the world’s largest dice collection, was telling Zocchi about a new 24-sided dice shape he had received from France.

            Zocchi asked Franck Dutrain, the Frenchman owning the 24-sided dice mold, to send him a sample.  When it arrived, it was the same shape Dr. Simkin had chosen for his D-Total™ project!  Because Dutrain had made his die 1 ¾ inch tall, its faces were just the right size for Dr. Simkins project.  Simkrin did not yet know of Dutrain or his dice-molding tool.

            After Zocchi suggested to Dr. Simkin that the numbers on the new die should be laid out like the numbers found on the face of a clock, Dr. Simkin redesigned his layout and expanded it to eleven faces.  Zocchi discovered that Simkin’s innovative layout could generate the results of dice shapes which had 2, 3, 4, or 5 sides, on up to 24, 30 or even 80 sides.  Because the distortion-free imprint on each face was so critical, it took close to three years to learn how each die could be imprinted by eight different passes before it was finished and welded shut with a sonic process.

            Kevin Cook can be found on-line at  Although Mr. Cook does not sell dice, he is always looking for unusual dice to add to his collection, and he usually knows who is making which unique shapes, colors, imprints, etc. and is willing to direct people to places that do have such dice for sale.

Additional D-Total™ information

This amazing dice can generate outcomes for every shape up to 24 by using Dr. Simkin’s idea of ignoring numbers which are not applicable.  To simulate the result of a D23, just re-roll if you get a 24.  For a D21, re-roll if you get a 22, 23 or 24.  Use Dr. Simkins method to generate other dice outcomes.

Many gamers don’t know that, generally speaking, dice are numbered so that the total of faces on opposite sides is one point higher than the total number of faces on the die.  The opposing faces on most 6-sided dice will total 7 (1+6, 2+5, and 3+4).  Dr. Simkin has followed this tradition by making opposite sides of the D3 spots always total 4, opposite sides of D4 total 5 and so on up to the numbers in the center of the 24-sided die, which always total 25.

Notice to Game Designers

Because the rolling of numbers higher than 24 requires two to four re-rolls, we are seeking a better solution.  If you can determine how to generate the higher number outcomes without re-rolling the die, please contact us for a reward for your solution.  In addition, if you can design an easy to learn, fast playing game which uses all or most of the numbers on this die, please contact Mr. Zocchi at

(228) 392-4177
7604 Newton Drive
North Biloxi, MS  39532-2830