Explain costume play heart in simple terms. Costume play is all about dressing up and pretending to be a specific character from an comic book. This trend has become a huge sensation among enthusiasts of geek culture internationally. Fans carefully create costumes and accessories to accurately portray their favorite characters. Costume players frequently participate in conventions or cosplay events, where they can exhibit their creativity and network with others who share the same passion. Ultimately, costume play is an manifestation of appreciation and dedication for the fictional character and a love for the nerd community.