There are some achievements in the game which can be obtained if you fit specific criterias. You can list through all achievements in the Menu -> Achievements.
If you press U -> Achievements you can see all achievement titles which you already have. You can have active two achievement titles at one time. One will displays before your name but will not give you any bonus. Second will give you bonus but will not appear before your name.
If achievement has some reward, you can take it from list of all achievements (Menu -> Achievements). You need to find concrete achievement (column position in achievement list) and click on chest in its right bottom corner.
|Position in List of titles||Achievement||Title||Effect||Description||Reward||Position in Achievements|