What is a Gamemaster or GM?
The gamemaster acts as a god in this made up world. He controls what it looks like, what it feels like, what hazards await. He also usually plays every single other person in the world, also known as NPCs or Non-Player Characters, except those that the player’s have. He also determines whether an attack lands or misses, whether a player succeeds or fails and so on. To be fair to the players all of that is done with random dice rolls with strict rules, fortunately in this RPG players need to know little of how the dice rolls work. GMs decisions are final and arguing with one is a VERY bad idea.