Dungeons & Dragons relies on a standard set of seven polyhedral dice, each serving distinct mechanical purposes that drive the game's blend of strategy, chance, and storytelling. Understanding what each die does is fundamental to playing any edition of D&D.
A standard starter set includes one of each die, but experienced players typically acquire multiples of d6s and d10s for convenience—rolling 8d6 for a fireball spell or 3d10 for a high-level smite is much faster with a handful of matching dice. Dice materials range from basic acrylic to premium metal, gemstone, or wood, but the math remains the same regardless of aesthetics.