Critical Role is a web series where a group of voice actors play tabletop role-playing games, primarily Dungeons & Dragons. Each campaign features a unique storyline, characters, and world, allowing for rich storytelling and character development. The campaigns are divided into seasons, with the first being Campaign 1: Vox Machina and the second, Campaign 2: The Mighty Nein. Players create characters and navigate challenges, often leading to unexpected twists and emotional moments, all while engaging with a dedicated fanbase through live-streaming and social media.