Tainted Grail's Stretch Goals offer two full-sized campaigns: The Last Knight, set 400 years after the core box campaign, where players explore a frozen, apocalyptic Avalon and bring the history of human conquest to a conclusion, and The Age of Legends, set 600 years before the core box campaign, where players join legends like King Arthur and Merlin to discover the origins of many myths. Players can also command armies and build structures thanks to the new military power mechanic. These campaigns, combined with the Fall of Avalon campaign, create a trilogy spanning a millennium and hundreds of locations and journal pages, providing a unique board game experience.
