WPAchievements is one of the best WordPress Achievements, Quests & Ranks Plugins. It is a perfect extension for your WordPress powered website to improve your user’s experiences and increase user interactivity. With WPAchievements you can create and manage user achievements, quests and ranks with ease.
Version 7.20 (2015-03-07)
* Added: Leaderboards will now display users Nickname if available, instead of the username
* Fixed: Multiple minor issues