Explain cosplay heart in simple terms. Costume play involves dressing up and pretending to be a particular character from an comic book. This trend has a massive trend among enthusiasts of nerd culture internationally. Fans meticulously create outfits and accessories in order to faithfully represent their favorite characters. Cosplayers usually attend conventions or cosplay events, where they can showcase their artistry and network with like-minded individuals who share the same passion. Ultimately, costume play is an manifestation of appreciation and dedication for the fictional character and a love for the geek community.