If you're one of RuneScape's legions of players, you might be waking up to just that sight today. Jagex's golden child has released its Clan Citadel update, and with it the ability to move into one of these sky castles. Just pray that the anti-gravity generators don't fail.
Clan Citadels are meant to be a pumped-up version of other MMOs' guild halls, a place where clans can congregate and party when not slaughtering everything in sight. There are four variants of castles, each of which can be customized to your heart's content and upgraded through seven tiers. These citadels aren't just for show, but for hardcore use: Each comes with a battleground editor that allows you and your clan to create a tailored combat scenario, including capture-the-flag, to compete with other clans.
RuneScape VP Daniel Clough says that this will make the game the toast of the town: "We have been looking for a unique and innovative way to provide new multiplayer features to the game, and we are hugely excited to see what the community makes of this update."