Colossal siege engines, planet-shattering orbital cannons, massive sci-fi superweapons, and a caliber-by-caliber breakdown of science fiction’s most absurd artillery. Welcome to Biggest Artillery Guns and Cannons in fiction (Ranked by Caliber). In this epic pop-culture and sci-fi ranking video, we dive into the most gargantuan, earth-shattering firearms ever dreamed up across movies, anime, video games, and tabletop universes.
