Los Angeles-based immersive entertainment company Vortex Immersion Media wants to give consumers a new way to experience virtual reality (VR) without those pesky headsets: The company has struck a deal to open a 360-degree dome multiplex that can seat up to 2,500 visitors in its main theater in Phoenix, Arizona. The Domeplex is being built in partnership with Arizona-based commercial real estate developer The Sollanna Group, and is scheduled to open in 2020.