Roll Three Dice

What are three dice used for?

• Classic Dungeons & Dragons ability scores: roll 3d6 for each ability.
• GURPS and other systems that resolve every check with 3d6.
• Board and party games played with three dice.

Why does 3d6 cluster in the middle?

One die gives a flat distribution, but the total of three dice forms a bell curve. 3 (1-1-1) and 18 (6-6-6) have one combination each, while 10 and 11 have twenty-seven each, so extreme results are rare.

How do I roll?

• The dice roll automatically when the page opens. To roll again, press “Roll Dice”, tap the dice or hit the space bar.
• On a phone with “Shake to roll” enabled, just shake your device.
• Pick a die type from “Dice Types” in the top menu or the d4 – d20 tabs: roll 1–4 of a d4, d8, d10, d12 or d20, or 1–6 six-sided dice.
• Every roll is saved to “Roll History” with its total, and the “Stats” tab shows how often each face has come up.

Is Zar Salla a fair dice roller?

Yes. Results come from your browser’s cryptographic random number generator (Web Crypto API, crypto.getRandomValues), and rejection sampling gives every face exactly the same probability. Nothing is sent to a server, nothing is decided in advance and no roll depends on the previous one.

Just like real dice, short streaks of the same number are normal. As you roll more, each face’s share gets closer to the expected value — you can watch this yourself in the “Stats” tab.

How many dice do you want to roll?