The cast of Critical Role is back for a new season of their Amazon-backed animated series, "The Legend of Vox Machina."Anna Webber/Getty Images for Prime VideoCritical Role's animated series, "The Legend of Vox Machina," is back for its third season.CR's cofounders say they're blown away by the international reception.CR has a list of places they'd like to take their show — and Singapore's on it now, CEO Travis Willingham said.Close to a decade ago, eight nerds started playing their "Dungeons & Dragons" game out of a studio in Los Angeles and live-streaming it on Twitch.Now, that "D&D" game has been adapted into the Amazon-backed animated series The Legend of Vox Machina, which is back for its third season.Apart from working on their Prime Video animation, the eight cast members of "Critical Role" now sell out arenas when they hold live shows.