The Aria Casino Floor is home to the sole casino within CityCenter, starts right at the hotel entrance and spans 150,000 square feet. The gaming area offers a variety of slot machines, table games, poker, and a race and sports book.The gaming devices are overseen and regulated by a 3,000 square foot data center, which adjusts the games to feature the most popular options based on real-time performance data collected from each machine. The casino floor is lined with exterior windows, and the high-limit gaming area is illuminated by skylights, a departure from the conventional casino design that typically excludes natural light.

The Aria Las Vegas Poker Room at Aria boasts 24 tables. The Ivey Room, named in honor of poker player Phil Ivey, was inaugurated in May 2010 as an exclusive one-table high-limit poker venue. This Aria Poker Room provided high roller players with direct access to the cashier’s cage and 24-hour table-side dining, serving as the venue for the highest stakes games at Aria.

Additionally, the Aria poker room hosts events for the World Poker Tour (WPT). The inaugural WPT500 took place at Aria in July 2014, drawing 3,599 participants. This event continued to be held around the same time each year until 2019. PokerGO Studio entrance During season 16 (XVI) of the WPT, Aria hosted two more events: the first WPT Bobby Baldwin Classic and the season-ending $25,000 buy-in WPT Tournament of Champions. In season 17 (XVII), the WPT ARIA Summer Championship took the place of the WPT Bobby Baldwin Classic. In May 2018, Poker Central launched the PokerGO Studio at Aria.