Award-winning, educational video game developer, DimensionU, Inc. hosted the 3rd Annual Department of Defense Math Games Tournament this week at four military research laboratories around the country. Middle school students from four states competed in 6th, 7th, and 8th grade level teams. Each location represented a branch of the military and their respective STEM Outreach offices. Grade level teams from each location participated in five multiplayer rounds of mathematics-based video game play using DimensionU's gaming platform. Similar to other DimensionU competitive educational gaming events, the tournament took place in a virtual, first-person action video game world, where students compete and interact as teams solving mathematics problems. The tournament was augmented with live video communication across the four states, allowing students to see their respective challengers.