Notice

Sources, outside links, gambling law and corrections.

Please read this before relying on anything in these notes.

History, not advice

The articles describe how games developed. They are not financial, legal or gambling advice, and nothing here suggests that any game is a way to make money.

Sources

General facts are drawn from encyclopedia entries linked in each article. Where a figure appears as an example, it is labelled as an illustration and is not a measurement.

Outside links

Links to other sites illustrate a point and are not endorsements. Some lead to pages in Traditional Chinese and to commercial gaming sites. Check any important detail with the service itself.

Gambling law and help

Gambling laws differ by country, and online play is restricted in many places. If gambling is causing harm, in the US call 1-800-MY-RESET for free, confidential help, or contact your national helpline.

Corrections

There is no shop, phone line or society here. Corrections are applied when pages are revised; each page shows its revision date.

Alder Pennick · revised 2026-11-09