The D&D Adventurers League is an ongoing official campaign for Dungeons & Dragons. It uses the fifth edition Dungeons & Dragons rules, and features the Forgotten Realms setting. You can play D&D Adventurers League games literally anywhere. Players use the fifth edition rules to create a character and bring that character to games anywhere D&D Adventurers League play is happening.

https://dnd.wizards.com/playevents/organized-play