During the Pledge Manager phase we'll be using weight based shipping. Weight based shipping calculates the final weight of your total order and assigns a shipping cost based on that.
NOTE: For all of the current reward tiers the shipping costs are accurate in this system.
This primarily affects any backers that are adding on additional copies of the game, or Dice of Crowns, or playmats, etc. Weight based shipping will help us to save you money at this point. Adding on money to your pledges does not factor in any additional shipping costs.