Added the achievements system much like on the xbox 360.
There is a breakdown view of all the available achievements with the amount gamerscore awarded upon achieving them (type @achievements ingame or set a hotkey 7-8-9).
Ranging from being revived to winning competitions, wearing items to visiting new areas there are currently 75 Achievements rewarding between 1 and 20 GamerScore.
At the moment there is no specific purpose for the GamerScore other than competing against the whole of Project69 to be on the leaderboards but in future it may become a value that will prevent you from hunting in areas or wearing items.
Achievements give you a good set of realistic goals to complete throughtout playing the game.