Another expansion occurred in 1997 with the opening of the Marina Tower.

In 1986, Harrah's opened the new all-suite Atrium Tower, due to the complex's popularity and the opening of Trump's Castle across the road. Harrah's opened on Saturday Novemwith a 506-room hotel tower, now known as the Harbour Tower, and became the top-grossing casino in the city. The new casino was located in the marina district - the first casino in Atlantic City not located on the famous boardwalk. Though Bill Harrah did not participate in the new casino's development, the facility was re-branded 'Harrah's Marina' prior to opening. Holiday Inns purchased Harrah's Corporation, following the death of Harrah's founder Bill Harrah, during construction of the facility. It was originally to be named the 'Holiday Inn Marina Casino'.

Harrah's Atlantic City was conceived, and initial construction started, by a partnership of LM Walters Co and Holiday Inns. Harrah's Resort Atlantic City is a hotel and casino, located in the marina district of Atlantic City, New Jersey, and is Harrah's flagship casino.