The Achievement Diary

The Achievement Diary (also known as  Diaries) are small challenges/tasks that players may complete in order to earn rewards. The Achievement system consists of Tasks that are usually tied to a specific area and are meant to test the player's knowledge about that area. There are currently one diary that has tasks to complete. The Tasks of each area are split into three categories, based on their difficulty. The easiest tasks usually do not require any skill levels to complete, but most higher level tasks require the player to have high skill levels and difficult quests completed, as well as in-depth knowledge of a particular area within  RuneScape.