D&D: Explorer's Guide to Wildemount - Rules of Play says:
Create your own Critical Role campaigns with this sourcebook for the world's greatest roleplaying game! Explorer’s Guide to Wildemount provides everything you need to play Dungeons & Dragons on the continent of Wildemount (set within the world of Exandria)—a land of war, betrayal, and swashbuckling adventure. Comprised of four regions, Wildemount provides endless potential for adventure in a land of brewing conflict and incredible magic. Rising tensions boil over into all-out war between the politically dubious Dwendalian Empire and the light-worshiping wastefolk of Xhorhas, supplying a vibrant backdrop for any D&D campaign to explore.