Durial321 was a player spoof found in Falador within unrestricted worlds during the World 666 event. He attacked with his abyssal whip and was able to cast Ice Barrage. Upon death, he would always drop a green partyhat awarded to the player who dealt the most damage. In keeping with the idea of him being an actual player, protection prayers could be used to reduce his attacks' damage but did not negate them entirely.
The NPC's name and appearance reference the most infamous player involved in the Falador Massacre on 6 June 2006.
Durial321 among the carnage in World 666.
Durial321 laughing at the player.
- In June 2016, in the days leading up to and during the event, Durial321 would appear to laugh at the player in a vision while a green partyhat spawned on the ground nearby.
- His combat stats (excluding hitpoints) are exactly the same as when the player was banned.