Hi! There's only one questline amongst the anniversary events, and is the 25 Years of Tibia Quest there's also other Anniversary activities you can find listed both on the tibia website and more detailed in Tibia.Fandom.com. Whichever you choose I linked them both Above.
Golden Contribution - Winter Update 2024 contestNovember 24, 2024
Brighid Grand Explorateur - Applying to TibiaQA team as ModeratorNovember 19, 2024
Looking for new TibiaQA staff membersJuly 12, 2024