In Moon, purchase every perk in one game. - Call of Duty: Black Ops
Travel a distance of 20 kilometers on foot. - Dead Island (Xbox 360)
Reach level 10. - Dead Island (Xbox 360)
3,499/3,4991,750/1,75079/79
4,338/4,3381,000/1,00050/50
3,494/3,5301,690/1,70070/71