This article explores the experiences of online gaming conduct of Finnish-speaking, 15–25-year-old digital gameplayers through qualitative questionnaire data (N=180). Themes constructed through thematic analysis shed light on the reasons and outcomes of hostile online behaviour, trash talk culture prevalent in competitive online games, structural discrimination in gaming cultures, and prosocial online gaming behaviour. Online gaming conduct is shown to be a complex whole impacted by both individual features and preferences and structures in society and game cultures. At the end of the article, suggestions are made for ways of reducing hostile and discriminating online conduct in gaming.