Element of Mystery

There are three uses for a gamemaster’s screen. It hides your rolls allowing fudging and preventing the players from doing mental math to calculate the monster’s numbers. It provides a place for cheat sheets and handy reference notes. And it hides the adventure and your notes from spying eyes, keeping the full map out of sight. But a screen also implies a lack of trust: the Dungeon Master doesn’t think the players won’t look at their notes, while the players might feel the DM cannot be honest with their die rolls. A screen is a barrier – both literal and figurative – between players and the gamemaster.