Scheduled events happen on a regular basis for each server. These are one of the main focal points of Knight Online.
Forgotten Temple 1 & 2
Open for characters of both nations who are Level 60 or above (1) or Level 46-59 (2). This event pits the first 32 to enter the event against waves of monsters. Those who remain standing at the end, if any, receive a treasure chest they can then trade in for powerful unique items. Players can form parties with members of opposing nations during Forgotten Temple Events.
Lunar War & Dark Lunar War
Another focal point of the game. Players can choose to participate in the event by entering the lunar valley during war time. The first 200 (in Lunar war) or 120 (in Dark Lunar) players from each side will decide the fate of the battle in the Lunar Valley where they must try to slay the Keeper of the opposing team. Among all the players in the war, 5 of the clan leader which have most National Points count in their clan will transform into commander which ride a horse and get additional benefits.
The winning side may then invade the opposing nation, regardless of participation in the war. Each invasion lasts 1 hour, after which the invaders are recalled back to their homeland. During this hour, the victorious nation invaders try to drive their way as deep as possible into enemy territory, with the aim of killing players from the opposite nation to gain National Points. Each of the commanders will received 300 National Points when they won the war. The defeated nation attempts to repel the invaders.
Castle Siege War
The only clan versus clan event. It occurs within the Delos zone. Only clans ranked III or better can participate. The clan that manages to hold the castle by defending an artifact inside for the longest period during the event will be given control of the Delos castle, and their customized flag will fly above it until the next castle siege war in which they must defend their hold.
The clan that holds the castle will set the tax rate for all moradon and delos zone and will receive all collected funds. However, setting the tax rate too high will make it difficult to get allies to defend the castle at the next castle siege.
Furthermore, the clan that holds the castle controls the gate through which people must pass in order to get to the Abyss dungeon. By simply closing the gate to non-allies they can inflate the price of the abyss gems which they can then sell for increased prices.