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Ameristar St. Charles to Open St. Louis Area’s First Roll In & Out Store Integrating Amazon’s Just Walk Out Technology and Amazon One

ST. CHARLES, Mo.– Boyd Gaming’s Ameristar Casino Resort Spa St. Charles, a riverboat casino on the Missouri River and one of the state’s most visited attractions, today announced plans to welcome Missouri’s first Roll In & Out store, offering a unique, hassle-free shopping experience for guests, open 21 hours a day, seven days a week.

The new store uses Amazon One and Amazon’s Just Walk Out technology for an effortless, checkout-free experience. Guests start by providing payment-card information or hovering their palm over an Amazon One device as they enter the store. Just Walk Out technology detects what shoppers take from or return to shelves, creating a virtual shopping session. Thanks to Just Walk Out technology and Amazon One, when guests complete the shopping experience, they can leave the store without waiting in line, and their payment card is charged for the items taken.

Just Walk Out technology is made possible by artificial intelligence, such as computer vision and deep learning techniques, including generative AI, to accurately determine who took what in any retail environment. Amazon-built synthetic datasets mimic millions of realistic shopping scenarios—including variations in store format, lighting conditions, and even crowds of shoppers—to ensure accuracy in virtually any environment.

Amazon One is a fast, convenient, and contactless way for people to use their palm to enter, identify, and pay. First-time Amazon One users can pre-enroll online at https://one.amazon.com/getting-started with their credit card, Amazon account, and mobile number, and the process takes about a minute. They can then complete the enrollment process in seconds by scanning their palm over an Amazon One device the next time they visit anywhere Amazon One is available.  

“At Ameristar St. Charles, we are dedicated to offering guests a unique and memorable entertainment experience,” said Ward Shaw, Ameristar’s senior vice president and general manager. “By welcoming the St. Louis area’s first store utilizing Amazon’s Just Walk Out technology, we give guests another reason to visit Ameristar and further cement our brand as the market’s premiere gaming resort.”

Encompassing a large portion of the Ameristar St. Charles streetscape, near the main casino entrance, Roll In & Out opens Wednesday, Oct. 4. Roll In & Out will offer tech accessories such as phone chargers and headphones and venue-specific logoed items (including RYSE Nightclub apparel), as well as assorted drinks and packaged snacks.

About Ameristar Casino Resort Spa St. Charles

Located just west of Lambert-St. Louis International Airport in historic St. Charles, Missouri, Ameristar Casino Resort Spa St. Charles, a property of Boyd Gaming Corporation, offers an exceptional gaming and entertainment experience in the St. Louis metropolitan area. The property features a 130,000 square-foot casino, AAA Four Diamond full-service luxury suite hotel with 397 well-appointed rooms, an indoor-outdoor pool, eight dining venues, a full-service luxury day spa, exciting nightlife venues and 22,000 square feet in meeting or event space. For more information, visit www.ameristarstcharles.com and connect on Facebook, Twitter and Instagram.

Founded in 1975, Boyd Gaming Corporation is a leading geographically diversified operator of 28 gaming entertainment properties in 10 states, and manager of a tribal casino in northern California. The Company is also a strategic partner and 5% equity owner of FanDuel Group, the nation's leading sports-betting operator.