FAQ:Achievements
From Official Stronghold Kingdoms Wiki
Achievements are awards given to players for completing certain objectives and targets within the Stronghold Kingdoms world.
All achievements have 4 levels to them : Iron / Silver / Gold / Diamond.
The objective for the Achievement itself remains the same for each level, however the amount of effort taken to reach the next level increases each time. An honour bonus is also given for obtaining the Silver, Gold and Diamond levels of all Achievements.
