High Quality Content by WIKIPEDIA articles! The Wachs Arena is a 8,057 seat multi-purpose arena in Aberdeen, South Dakota. It was built in 1987. It is the home of the Northern State University Wolves basketball and volleyball teams.An arena is an enclosed area, often circular or oval-shaped, designed to showcase theater, musical performances, or sporting events. It is composed of a large open space surrounded on most or all sides by tiered seating for spectators. The key feature of an arena is that the event space is the lowest point, allowing for maximum visibility. Usually, an arena is designed to accommodate a fairly large number of spectators.