The World Boss is a Player vs. Environment (PvE) activity. It is a regular event boss which you can fight twice a week. Pressing the Boss tab, located on the left side of the screen, will show a timer with a countdown to when the next fight is available.

To fight the world boss you need keys which are given to you for free (if you have NONE) or which you can buy on the exchange. You can fight the boss as many times as you want to, provided you have the keys to enter. Each time you fight the boss your damage is recorded and it is added to your total damage.

In the end, your rank is determined by the total damage you have dealt. The highest-ranking players get better rewards. The reward is Boss Runes which you can use to buy NFTs at the Town Shop. The rewards from ranking are delivered the next time the boss appears.