Royal River Casino

Flandreau, South Dakota

The Flandreau Santee Sioux Tribe partnered with LEO A DALY to undergo a major renovation of its 80,000-SF property. The goal of the renovation was to transform the guest experience and expand the casino’s offerings to a younger crowd, while still accommodating current customers.

LEO A DALY’s design for the new space features a sophisticated homage to the tribe’s heritage and its relationship to nature. Wood slat “ribbons” wind and wrap through the casino, evoking the winding Big Sioux River that flows nearby. Intimate lighting and soothing wood details within the lounge reference the rolling hills of the region and encourage guests to relax while connecting with others. Black and white quills, a constant in the Flandreau Santee Sioux Tribe tradition, are represented in the lighting. These elements celebrate the heritage and traditions of the tribe, while giving identity to the space itself.

The renovation includes an intimate and contemporary 820-SF VIP Lounge. The administrative area was converted into this revenue-generating space in the middle of the gaming floor. The lounge features an inviting, modern fireplace encouraging visitors to relax and visit with friends. The central location of the lounge is secluded from the rest of the floor. This provides an exclusive space to offer the guest a place to break away from the noise and smoke of the casino floor and enjoy a social experience.


Flandreau Santee Sioux Tribe

At a glance

80,000 SF


820-SF VIP lounge

Sports bar

Center video bar

50-seat a la carte restaurant

Administrative office


Architectural and engineering services

Interior design