Radioactive, by Brandon Walsh, is a free comic display font with a scrappy, cut-paper look and a restless punk energy. The letters lean into uneven angles, lopsided rounds, and tall, spiky verticals, so the whole alphabet feels jittery, handmade, and a little unsafe in a way that suits the name.
It fits posters, zine covers, Halloween flyers, band merch, and game title cards where a free font needs to look raw rather than polished. Use it for short headlines, logos, or splashy chapter openers when you want the letters to feel cracked, improvised, and slightly radioactive instead of neat.