This is D&D Basic Rules, Version 1.0, released in November 2018, covering how to play, adventures, and creating a character.
The Dungeons & Dragons roleplaying game is about storytelling in worlds of swords and sorcery. It shares elements with childhood games of make-believe. Like those games, D&D is driven by imagination. It’s about picturing the towering castle beneath the stormy night sky and imagining how a fantasy adventurer might react to the challenges that scene presents.
Unlike a game of make-believe, D&D gives structure to the stories, a way of determining the consequences of the adventurers’ action. Players roll dice to resolve whether their attacks hit or miss or whether their adventurers can scale a cliff, roll away from the strike of a magical lightning bolt, or pull off some other dangerous task. Anything is possible, but the dice make some outcomes more probable than others.