Dice in Gods & Monsters
You’ll often use more than one d6 and add them together. If you see the term 3d6, for example, this means to roll three six-sided dice and add the three dice together. If you roll a “3”, a “6”, and a “5”, this is a “14”.
You will also use four-sided dice (d4), eight-sided dice (d8), ten-sided dice (d10), and twelve-sided dice (d12), usually for things like survival potential and weapon damage. You might see 2d4 for rolling two four-sided dice and adding them together, or 1d8 for rolling one eight-sided die.
For all dice except d4, you read the top number (just as you do on a d6). The d4 doesn’t have a top number, so you read the bottom number, which is usually printed along the sides.
Players will roll four six-sided dice and ignore the lowest to create their ability scores.
Adventure Guides will sometimes use a d100. It is unlikely that you have a hundred-sided die. You’ll generate a number from 1 to 100 by rolling two ten-sided dice of different colors or sizes. One of the dice will be the “tens” die, and the other will be the “ones” die. If you roll a “1” and a “9”, this is “19”. If you roll a “4” and a “2”, this is “42”. If you roll two zeroes, this is “100”. Most of the time when you are rolling d100, you are checking a percentage. So if something happens 65% of the time and you roll less than or equal to 65, this something has happened. If you roll 66 or greater, this something has not happened.
Where to get dice?
Any gaming store that carries role-playing games will have dice. You’ll be able to choose your dice separately, buy them in packs of seven (one of each kind of die), or in packs of ten (one of each kind of die, plus three extra d6 for rolling abilities).
You can also buy dice from Amazon.com or sometimes directly from the manufacturer, and if there are gaming conventions in your town most likely there will be dice for sale on the exhibition floor.
Dice sets will come with a special d10 for rolling d100: instead of reading 0 to 9, the special d10 will read 0, 10, 20, 30, and so on. To roll d100, roll both the normal and special d10, and if, for example, you roll a 40 on the special d10 and a 6 on the normal d10, that’s 46. A roll of 0 and 0 will still mean one hundred.