No, they don’t allow players from the USA.
CITY CLUB CASINO END-USER AGREEMENT
7. YOUR WARRANTIES AND REPRESENTATIONS
You warrant and represent that:
7.1 you are not a resident of the Netherlands Antilles, Hong Kong, Israel, Cyprus, Estonia, Bulgaria and The United States of America and its territories
By the way, have you read their Terms and Conditions?
4.3: Fee Payment
If in a given month, there are no new depositing players, you WILL NOT be eligible for payment for THAT GIVEN MONTH, even if your players continued to play or make further deposits. Only if there is at least 1 (one) new depositing player each month, you shall receive payment for the revenues generated by all your players.