A classroom tool became a game’s randomizer
Dungeons & Dragons needs more than a way to decide whether an action succeeds. Its rules also need to produce different ranges of outcomes: a small die can settle a narrow question, while a many-sided one can generate a broader spread of results. Polyhedral dice—solid shapes whose faces are polygons—made those ranges tangible. Roll, read the upper face, and the table has a number to use.
Gary Gygax encountered these unusual dice in an educational catalog aimed at math teachers. That discovery offered the game an off-the-shelf answer to a practical design problem: how to generate numbers beyond the familiar six-sided die. The dice were not yet an ordinary retail item, however, so having a good mechanic did not mean players could easily obtain the equipment.
When the dice were missing
Early groups could draw numbered chits from a cup instead. A chit is simply a small marked slip; mix the slips, draw one, and use its number. For a particular roll, a matching set of chits could serve the same basic purpose as a die: it selected one result from a range.
The difference was in the experience around the result. A die made the random choice quick and visible, and its shape became part of the game’s physical ritual. Chits were a workable substitute, but they required preparation and handling rather than a single roll.
That gap between rules and availability is a small but revealing piece of tabletop design. The game’s distinctive dice were not just decoration added after the rules; they helped make varied outcomes easy to generate at the table. Before players could buy them readily, they improvised the same chance mechanism with paper—and kept playing.
