In today's market it is important for all online casino brands to accept as many payment methods as possible. Unfortunately, not many sites are able to accept all forms of payment, only the top tier casino sites do so. The brands we feature on this page all are of the most respected in the industry, and all of them accept deposits from US players who wish to deposit using Mastercard. These sites also allow American Express deposits, but most importantly, they all have a reputation of paying out winnings fast and with no hassles. These casino brands utilize either the Vegas Technology software, which features more than 100 games, or the Real Time Gaming software, which is known to have the loosest slots on the net.