The Dungeon Master (DM) is the storyteller, referee and world builder. You describe the world, control the monsters and NPC's (non-player characters), and guide the players through their adventure. You job is to facilitate fun, not memorize every rule.
If you are new to Dungeons & Dragons you should read up on the basics before you start your first campaign. We have a Quick Start Guide that we recommend reading through to give you an idea of how a game will play out.
Starting with a pre-written adventure like:
Read the first few chapters before your session so you are familiar with the following:
You don't need to memorize everything, focus on the following basics:
🎲 The D20 System
Most interactions in D&D use this formular:
D20 + Modifier = Difficulty Class (DC)
🛡️ Combat Basics
🧠 Rule of Thumb
If you are unsure about a rule, make a quick call and keep the game moving forward. You can always look it up later, you don't want to kill the parties fun.
🗣️Describe the World
🧍 NPC's and Monsters
🧩 Skill Checks