In the "Dungeons & Dragons" ("D&D") fantasy role-playing game, dragons are an iconic type of monstrous creature. As a group, "D&D" dragons are loosely based upon dragons from a wide range of fictional and mythological sources. Dungeons & Dragons allows players to fight its fictional dragons (Tiamat being one of the most notable) and "slay their psychic dragons" as well. These dragons, specifically their "dungeon ecology," have implications for the literary theory of fantasy writing. "D&D" dragons also featured as targets of the moral panic surrounding the game.