Mummy's Gold is regulated by Malta and powered by Microgaming casino games. Both Malta and Microgaming do not accept citizens from the United States of America.
I sent an email to the Mummy's Gold support to get a clear explanation. Here is their answer :
Thank you for taking the time to contact Mummy's Gold Casino.
Due to the Unlawful Internet Gambling Enforcement Act of 2006 and SAFE Port Act which forms a part of U.S Law, we are unable to accept players that are within the United States of America. This means that while you are within their territory we would not be able to allow you to play with us.
Other restricted regions include, but are not limited to:
American Samoa, France, Guam, Israel, Macau, Poland, Northern Mariana Islands, Puerto Rico, Hong Kong, South Africa, Turkey, United States Minor Outlying Islands ,Guadeloupe, Martinique, French Guiana, Réunion, Mayotte, French Polynesia, Wallis and Futuna, Belgium, and US Virgin Islands.
You are more than welcome to play with us should you be in a country we can accept players from, such as the United Kingdom, Canada, Australia, New Zealand, and also most European countries. Remember that we may not be able to accept funds from financial accounts (Credit / Debit Cards, Bank Accounts) that are issued within restricted countries due to legislation.
As part of the US gambling law, Mummy's Gold preferred to step back from the US Markets. However, some online casinos still continue to accept US citizens. Check our top 3 US Casinos.
Technically, you could play to Mummy's Gold if you signed up from abroad. For instance if you are in vacation in Argentina or in Vietnam, you could play to Mummy's Gold while you drink your Cosmopolitan. However, you should not use a US address and an american credit card (from Citibank for instance).
This is the same problem as "signing-up from abroad". You could use a VPN to play to Mummy's Gold, but you would need to have a real address outside of the US (with utility bill at your name for instance). If you have a brother abroad, for instance in the Costa Rica, it could work. Otherwise, in case you win a $8,000,000 jackpot, Mummy's Gold could block your funds..
We know that Bovada is currently accepting US citizens. It is powered by Top Game software and offers a nice welcome bonus.