Define costume play in easy language. Costume play refers to dressing up and pretending to be a specific character from a video game. It has become immensely popular amongst enthusiasts of geek subculture internationally. People thoroughly craft outfits and props in order to faithfully represent their favorite characters. Costume players commonly attend gatherings or cosplay events, where they can display their creativity and connect with others who share the same passion. Ultimately, costume play is an form of admiration and dedication for the fictional character and a love for the geek community.