hehe... its just a system of measurement for money. 1000c = 1s. so if you have 999 copper, and you get 1 more copper/cent, then you will have a silver! horay for money! You can get money buy selling materials to shops or if its something nobody wants like crushed bone you can sell it to the NPC. Click purchase and then in your inventory right click on what you want to sell. hold shift for multiples.