Just a quick update to mention that the Game Sheets have been improved to print better on A3 or A4 format. Previously, the grid area of the map on Game Sheet 2 was smaller, but there is now more space to draw the map. 

Optionally, you can make your own grid in a sketchbook or drawing paper in place of Game Sheet 2. One advantage of this is that if you rule the grid lines in pencil, they can be erased afterwards.