Organized as a rough chronology, this entry covers the topics of racism, sexism, and homophobia within online games, starting with multi-user dungeons (MUDs) in the 1990s and moving through to the contemporaneous indie games movement with a predominant Western focus. This issue is framed as a political and discursive struggle between the dominant culture and the diversification of a medium designed, in many ways, as a bastion of normative White masculine heteronormativity in the face of eroding and indeterminate identity at the interface. Key topics include experimentation with and freedom from identity, stereotypes and intentional design, griefing (abusive game behavior) and trolling as discursive policing, and progressive game design.