Roll virtual dice for tabletop games, RPGs, or decision making. Supports d4, d6, d8, d10, d12, d20, and d100. Roll multiple dice at once and see totals. Uses cryptographic randomness.
Dice rolling is central to tabletop gaming, probability education, and decision-making. From Dungeons & Dragons campaigns requiring a d20 for attack rolls to board games using standard d6 dice, random number generation drives gameplay and excitement. This virtual dice roller uses cryptographically secure random number generation (crypto.getRandomValues) to ensure truly unpredictable results — actually more random than physical dice, which can have manufacturing imperfections causing slight bias. The tool supports all standard polyhedral dice used in tabletop RPGs: d4 (tetrahedron), d6 (cube), d8 (octahedron), d10 (pentagonal trapezohedron), d12 (dodecahedron), and d20 (icosahedron). Roll multiple dice at once and see individual results plus totals, perfect for complex game mechanics.
Yes — it uses your browser's crypto.getRandomValues() API, which provides cryptographically secure random numbers sourced from your operating system's entropy pool. This is more random than physical dice.
A standard D&D set includes d4, d6, d8, d10, d10 (percentile), d12, and d20. The d20 is used most often for ability checks, attack rolls, and saving throws. Damage rolls use various dice depending on the weapon.
This is standard dice notation: roll 2 six-sided dice and add 3 to the total. The format is NdX+M where N=number of dice, X=sides per die, M=modifier. It's used in most tabletop RPG rule books.
Yes — manufacturing imperfections, air bubbles, and uneven materials can create slight bias. Casino dice are precision-machined to 1/10000th of an inch to minimize this. Hobby dice vary in quality.
Different dice provide different probability distributions. A d6 gives equal 1/6 chance per result, while 2d6 creates a bell curve favoring 7. Game designers choose dice types to create the probability feel they want for their mechanics.