Existing virtual reality technologies cover only certain areas of the mixed-reality spectrum: Augmented reality goggles are unable to provide immersion while head-mounted displays make it difficult to interact with the real world. The Holographic Room (HoloR) is a stereoscopic, multi-person, multi-viewer, spatial projected augmented reality system, which enables applications to blend between different parts of the mixed-reality spectrum. By using webtechnologies like JavaScript and WebGL the operation of HoloR does not require any installation or compiling process and thus enables rapid development of applications and plugins. Implemented applications cover collaborative data exploration, augmented persons, ambient information systems and smart home integration.