In order to celebrate the 11th anniversary of Final Fantasy XI, Dragon Quest X‘s first anniversary and Final Fantasy XIV‘s successful launch, Square Enix has announced a huge cross-promotional event for all three games. The first event is for Final Fantasy XI and features Sage Hourou from DQ X coming to Vana’diel via the World Ark. Trouble follows when a slime wanders into the area as well. Once the player completes the quest, they can use slime equipment in the game. In the second quest, Spriggans from FFXIV mysteriously show up. When you beat this mission, you can use the monster in Monstrosity and gain some themed-equipment as well.