Caesars was the second casino to open after Resorts International. By the time it began operations in June 1979, Atlantic City had been a legal gambling city for one year. Resorts was making more money than any single property in Las Vegas. The competition Caesars was about to provide would prove almost as profitable. The original 1979 building was, however, architecturally awkward - it still looked like a Howard Johnson's, with an art deco exterior and motor-hotel proportions. The casino floor was modest. The hotel rooms were standard motor-hotel size. None of it matched the Roman fantasy the Caesars brand was famous for in Las Vegas. The company spent the next two decades gradually correcting that mismatch.

Through the 1990s and 2000s, Caesars wrapped the original Howard Johnson's building in increasingly elaborate Roman facades. The boardwalk-side entrance was rebuilt with columns, statues, and ornamental pediments. The Pacific Avenue side received a matching Roman treatment. A new parking garage was added. The Centurion Tower opened in 1997 - twenty-five floors, 610 rooms, 299 feet high - giving the property the height it had previously lacked. The 1985 Circus Maximus Showroom replaced a smaller cabaret theater, providing a 1,600-seat venue for the kind of big-room headliner acts that Caesars Palace in Las Vegas had been hosting since the 1960s. Major performers came: Diana Ross, Liza Minnelli, Tina Turner, Lionel Richie, Paul Anka, Celine Dion. The Roman theming made the building look more like a casino and less like a motor hotel.

In 2006 the casino opened a connecting skybridge across the boardwalk to the newly redeveloped Pier Shops at Caesars - an upscale shopping mall on the former Million Dollar Pier. The bridge made it possible to walk from the casino floor to the pier shops without going outside or crossing the boardwalk pedestrian traffic. The pier had Gucci, Louis Vuitton, Tourneau, Tommy Bahama, and the Apple Store. It was supposed to give Caesars a luxury retail anchor that no other Atlantic City casino could match. The pier went through several rebrandings as it declined - Playground Pier in 2015, ACX1 Studios in 2023. The skybridge still runs. The pier is now mostly empty of stores. Caesars still occupies the casino side.

When Twin River Worldwide Holdings bought Bally's Atlantic City from Vici Properties in 2020, the deal carved out one piece of the Bally's complex - the Wild Wild West Casino - and transferred it to Caesars next door. The Wild Wild West had opened in 1997 as Bally's second gambling floor, with Old West theming and a separate boardwalk entrance. Under Caesars ownership it became the sports betting hub for the property. A bar, a wraparound video wall, private party rooms, and the boardwalk-front Saloon and Guy Fieri-branded barbecue joint all run out of the Wild Wild West space. The World Series of Poker poker room at the Pacific Avenue end has been closed since the COVID-19 pandemic. The various themed spaces - Roman, Western, poker - now coexist within a single connected casino complex.

In 2023 Caesars opened a new entertainment venue called The Hook in the restored Warner Theatre - an Art Deco movie palace built in 1929 that had sat dark for decades. The Hook hosts a residency show called Italian-American Psychedelic, a Superfrico restaurant, and themed cocktail bars. It is the East Coast version of a Las Vegas immersive theater concept that Spiegelworld has been running successfully on the Strip. The restoration of the Warner Theatre is one of the more interesting recent Atlantic City projects - a 1929 building given new life as part of the casino's entertainment programming. Caesars also operates Qua Baths and Spa in the Ocean Tower and Bellezza Salon in the Centurion Tower. The original Howard Johnson's that the building started as is, by now, completely invisible behind layers of subsequent construction. Only the rough footprint survives.