We propose a workshop soliciting submissions on the topics of spatial and 3D interaction in highly fidelity graphical interactive systems, especially video games and virtual reality systems. Topics will cover all aspects of interaction in these systems, including input-related issues such as efficient control mappings, spatial input device features (e.g., low latency, input noise, etc.), as well as output-related issues such as display hardware features (e.g., stereoscopic rendering, head-tracking), and information visualization (e.g., game HUDs for status information). We propose to include both position papers, as well as papers including at least preliminary studies on issues in these areas.