Doom! is an achievement that requires the player to speak with the Doomsayer about the Warning System. Trivia This achievement used to be a task prior to the release of the Achievements System on 18 April 2017. Retrieved from "https://runescape.fandom.com/wiki/Doom!?oldid=22826438" Categories: Achievements Needs removal update added Free-to-play achievements Exploration achievements Lumbridge achievements Beginner achievements Community content is available under CC-BY-SA unless otherwise noted.