I'm not posting to take side in the discussion if it's preferable to stick with the original dice or to use variants. I think that's pretty much a question of personal taste (although of course I have my thoughts on it, will perhaps write another post later).
But
if you want to write a cutsom quest or houserule (or a complete set of rules of your own) and to use the colored dice or other special dice, this does
not necessarily mean to restrict your audience.
There are ways to include the functionality of the colored dice without the need to actually buy them. This may in some cases contradict the "priciple of simplicity" - I just wanted to point out the possibilities there are.
- Emulate the colored dice with other diceEverybody will have some normal d6 at home. These have six different, clearly distinguished sides, so you can "map" the sides of every six sided die to them.
For example take the classic combat dice:
| D6 | 1 | 2 | 3 | 4 | 5 | 6 |
| Combat Die | Bl S | Wh S | Wh S | Skl | Skl | Skl |
Now the black die:
| D6 | 1 | 2 | 3 | 4 | 5 | 6 |
| Black Die | Bl S | Wh S | Skl | Skl | Skl | Skl |
It's helpful that normal D6 are numbered and that people think in numbers. You don't have to include a table in your quest description. Just describe it like "low numbers 1-2 are defence, 1 for monsters, 2 for heroes, high numbers 4-6 are hit". Most people will memorize this relatively easy.
- Emulate the colored dice without diceThis is probably the king's way when including special dice in your quest.
Custom quests and rules are normally published in paper-equivalent form - mostly in the form of a digital document (like PDF), but intended to be printed on paper (perhaps in the near future everybody will have a 3D printer available, but at the moment paper is the medium).
It's not uncommon to include special material to be used with the quest. Many quests pubished at the Inn have custom cards coming with them. Room overlays are more seldom, but still there are some. I once started to make a quest with paper minis for some special characters (never finished this, however).
So it would be legit to include a substitute for the colored dice in a printable form.
There are at least two ways to do so: cards (the elegant way) and spinners (the playful way).
CardsYou can always generate random numbers by drawing cards instead of rolling dice. Six cards would be enough for the issue at hand, but a larger deck would be more practical to handle and shuffle. Drawing cards is a great way to make the distribution of random numbers more reliable - in the end, when you draw all cards, you will have the exact probability distribution of results. You can of course also have true random results by putting the drawn cards back and reshuffle. If you have a deck of 30-50 cards (normal amount) with skulls, white and black shields, and perhaps double symbols, this will be more than enough to make several stacks to simulate all colored dice there are.
SpinnersSpinners are a simple way to cheaply and easily make random generators. Include a hexagon shape in your quest or rule that the user can cut out, stick a match through the middle, and then spin it like a pegtop. It will eventually land on one side, the opposing side pointing upwards. Print the symbols you want in the six triangle sections of the hexagon.
