Terms and conditions

About these terms

“We”, “us” and “our” mean the operator of rollad20.co. “You” means anyone who visits or uses the site. You can contact us at contact@rollad20.co.

The service

Roll a D20 provides a free browser-based dice roller and guides about D20 rolls, probability and dice effects in games. No account is needed. The site is intended for tabletop play, learning and entertainment, and we may add, change or remove features at any time.

Acceptable use

You agree not to:

• disrupt, overload or impair the site, for example with automated mass requests;
• scrape or copy the site in a way that places an unreasonable load on the server;
• try to gain unauthorized access to the site, the server or other systems, or probe them for vulnerabilities without permission (please report any security issue you find to contact@rollad20.co);
• use the site for anything unlawful, or present its results as official rulings or as endorsed by a game publisher.

Your responsibilities

• Check that how you use a roll matches the rules of your game, event or table.
• Don’t rely on the site for gambling, wagering, prize draws, giveaways or decisions with legal or financial consequences. The disclaimer explains why.
• Use an up-to-date browser. The roller needs JavaScript and the Web Crypto API.

Intellectual property

The site’s text, design and code are provided by the operator of rollad20.co. You may link to any page and quote short extracts with a link back to the source. Please don’t copy or republish whole pages, or substantial parts of them, without permission.

The celestial die illustration was generated with an AI image tool, and no exclusive ownership of it is claimed. The Inter typeface is used under the SIL Open Font License. Dungeons & Dragons, D&D, Magic: The Gathering and related names are trademarks of their respective owners and are used only to identify the subjects discussed.

Third-party links

Pages may link to or mention other websites, such as official rules sources. We don’t control those sites and aren’t responsible for their content, availability or privacy practices.

Availability and changes

We aim to keep the site available, but we don’t guarantee that it will be uninterrupted or error-free. We may update, suspend or withdraw any part of it, including these terms, at any time. The date at the top shows when these terms last changed.

No warranties

The site and its content are provided “as is”. The roller uses cryptographic randomness, and the guides are checked against their sources, but we make no promise that the site is complete, error-free or suitable for any particular purpose.

Limitation of liability

To the extent permitted by law, we are not liable for any loss or damage arising from your use of, or inability to use, the site, including the outcome of any game or decision that relied on a roll or a guide. Nothing in these terms limits or excludes liability that cannot be limited or excluded by law.

Privacy and cookies

The privacy policy and cookie policy explain how the site handles information.