Abstract: That video games have reached the masses is well known. Moreover,game streaming and watching other people play video games is aphenomenon that has outgrown its small beginnings. Game videostreams, be it live or recorded, are viewed by millions. E-sports is theresult of organized leagues and tournaments in which players cancompete in controlled environments and viewers can experiencethe matches, discuss and criticize, just like in physical sports. In theGameStory task, taking place the first time in 2018, we approachthe game streaming and e-sports phenomena from a multimediaresearch side. We focus on the task of summarizing matches usinga specific relevant game, Counter-Strike: Global Offensive, as a casestudy. With the help of ZNIPE.tv, we provide a data set of highquality data and meta data from competitive tournaments and aimto foster research in the area of e-sports and game streaming.