Some of this will be like with the player character one, just more. Except dice. You were either going to have a lot or not a lot as normal. Besides dice…
1. More Books. Generally speaking, have core rule book, bestiary, Game Master’s Guide, and maybe a couple other supplemental books if available. Most of this is for rules and an inspiration for potential games. Anything more than that will either be limited to what you want, or in the case of Pathfinder 1st edition, have the players responsible for bringing the books and showing you the page.
2. Notes: Basically, have notes and know your campaign. Regardless if its a world you made or a pregenerated one, you need to interpret what is given and change things as needed either due to the actions of the players or how ridiculously overpowered some pregen games are. Also, this might help keep you from accidentally from Nurfing (making a character needlessly and or ridiculously weak),
3GM screen: This is a divider that folds up and expands as needs be. Its purpose is to block the view of players so they don’t peek at your notes. This adds an aura of mystery, and keeps the fun bits from being spoiled. Also hides dice roles and so you need to know how strong something is, and the scores you need to roll for successes.
4Maps:This is what your game will be on.Most players have a reusable game mate that they can draw the surroundings with a dry erase markers (NOT SHARPIES), or print it up. You don't have to be a good artist, just get the gist.
5Background Music: If allowed, and keep in mind if its allowed, try to have it as background to add to the scene. If it overwhelms it fails its job. A boss fight or other intense scenes can have a little more intensity or bombast. Also keep in mind what is supposed o be a few couple minutes in game for a fight, is gonna be 30 minutes with a single GM and 3 PC's. Have lots of stuff, and try not to have the same track on repeat too much. Even the best tracks can be reduced to irritation if overused.
6Rules can be merely suggestions: You are the one interpreting the game. Even if its pregenerated, there is plenty of room for interpretation, This means you can adjust difficulty even more if say the pregen mission is too difficult. Don't be afraid to fudge things if it makes the story more interesting.
7Don’t be a cruel tyrant, but don’t be a pushover: You have to have a measure of control in the game. You can’t let the other players walk all over you as this won’t be fun for you. On the otherhand, if you are there and only there to torment your players this isn’t going to be fun.
Except for the HP Lovecraft themed games as those are there to see how long your character lasts before they die or go insane.
The rest of the time, make the consequences for actions realistic. Insult the mob boss, there is going to be trouble. Steal everything that isn’t nail down, you are going to have the guards after you.
8Practice your communication skills: I am not saying you are perfect, but you should be clear and understandable. I have a stutter, and plan to GM some games. My main Dungeons and Dragons group is GM’d by someone with a stutter. But outside of a couple moments when asked to slowdown and say that again, we both get out points across clearly the games are pretty fun. Maybe take a communication or speech class if needs be, but getting the point across is good enough. Do a good enough job and none of the other players will think about it at all.
9You are a referee first and foremost. This is maybe the most important aspect of this. We can argue till we are blue in the face, but if we had to make a list of things a GM needs, this is going to be one of them. You are providing a scenario for other people to play. Sometimes this means these are 12 year olds. Other times you have 20 and 30 somethings with the mind of a 12 year old. You are going to play with all manner of people, and in the case of Society play, not all of them are going to have the same level of social skills.
I have played with people with a spectrum of Autism like myself. I have played with the Schizophrenics, and people with Anxiety disorders. And we all had fun. Despite our hang ups, we acted like decent human beings, and most of the time we weren’t the ones that needed to be told to grow up. However questions and arguments will happen, and you will have the final say on if one party is right or wrong, if both are right and wrong, and so on. Or if things should be altered for the flow of the story and how the charecters shape it.
This is particularly good with some home brew classes and races. I have seen mech pilots and warg players. I have seen bunny people and variation of ratfolk closer in design to the Skaven then anything else. I have even played next to a player who had a monk Pegasus. I will leave it to you to figure that out.
In these cases, you are going to help keep things from being over or under powered.
You also have to make sure that things progress in a manner that helps everyone not do something jerkish to other charecters or would cause needless problems for the group. Of course this means lawful, chaotic, or evil stupid charecters and by extention their players. If they are too problematic, you have to deal with it before it gets nightmarish.
How to be a Great Game Master
The youtuber does videos on how to handle different situations that pop up, world building, and generally how to be a good Game Master. In particularly, look up his video on how to handle the dreaded Murder Hobo.
https://www.youtube.com/channel/UC1F4eMw3W_rHBfxf9_m1hbw
Seth Skorkowsky: Another ryoutube that focuses on the table top, but he does both tips and tricks for the GM and as a Player Character. Particularly the worst kind of players and characters.
https://www.youtube.com/channel/UC1F4eMw3W_rHBfxf9_m1hbw
See Bashew is good as he has these flash animated videos on different spells, and stratagies on how to use them (Book and Cook with Heat metal for instance).
https://www.youtube.com/channel/UCCXR2kCo7Lcw_BKwWxo09kw
Critcrab: He’s a youtuber who takes stories, both good and bad, from his Reddit page and narrates them over a background, usually a video game he is playing.
https://www.youtube.com/channel/UCSIvTcuNzmGlGBQ3owdMZ1Q
Whistle While You Work: here is the video to
So, No pressure and have fun
1. More Books. Generally speaking, have core rule book, bestiary, Game Master’s Guide, and maybe a couple other supplemental books if available. Most of this is for rules and an inspiration for potential games. Anything more than that will either be limited to what you want, or in the case of Pathfinder 1st edition, have the players responsible for bringing the books and showing you the page.
2. Notes: Basically, have notes and know your campaign. Regardless if its a world you made or a pregenerated one, you need to interpret what is given and change things as needed either due to the actions of the players or how ridiculously overpowered some pregen games are. Also, this might help keep you from accidentally from Nurfing (making a character needlessly and or ridiculously weak),
3GM screen: This is a divider that folds up and expands as needs be. Its purpose is to block the view of players so they don’t peek at your notes. This adds an aura of mystery, and keeps the fun bits from being spoiled. Also hides dice roles and so you need to know how strong something is, and the scores you need to roll for successes.
4Maps:This is what your game will be on.Most players have a reusable game mate that they can draw the surroundings with a dry erase markers (NOT SHARPIES), or print it up. You don't have to be a good artist, just get the gist.
5Background Music: If allowed, and keep in mind if its allowed, try to have it as background to add to the scene. If it overwhelms it fails its job. A boss fight or other intense scenes can have a little more intensity or bombast. Also keep in mind what is supposed o be a few couple minutes in game for a fight, is gonna be 30 minutes with a single GM and 3 PC's. Have lots of stuff, and try not to have the same track on repeat too much. Even the best tracks can be reduced to irritation if overused.
6Rules can be merely suggestions: You are the one interpreting the game. Even if its pregenerated, there is plenty of room for interpretation, This means you can adjust difficulty even more if say the pregen mission is too difficult. Don't be afraid to fudge things if it makes the story more interesting.
7Don’t be a cruel tyrant, but don’t be a pushover: You have to have a measure of control in the game. You can’t let the other players walk all over you as this won’t be fun for you. On the otherhand, if you are there and only there to torment your players this isn’t going to be fun.
Except for the HP Lovecraft themed games as those are there to see how long your character lasts before they die or go insane.
The rest of the time, make the consequences for actions realistic. Insult the mob boss, there is going to be trouble. Steal everything that isn’t nail down, you are going to have the guards after you.
8Practice your communication skills: I am not saying you are perfect, but you should be clear and understandable. I have a stutter, and plan to GM some games. My main Dungeons and Dragons group is GM’d by someone with a stutter. But outside of a couple moments when asked to slowdown and say that again, we both get out points across clearly the games are pretty fun. Maybe take a communication or speech class if needs be, but getting the point across is good enough. Do a good enough job and none of the other players will think about it at all.
9You are a referee first and foremost. This is maybe the most important aspect of this. We can argue till we are blue in the face, but if we had to make a list of things a GM needs, this is going to be one of them. You are providing a scenario for other people to play. Sometimes this means these are 12 year olds. Other times you have 20 and 30 somethings with the mind of a 12 year old. You are going to play with all manner of people, and in the case of Society play, not all of them are going to have the same level of social skills.
I have played with people with a spectrum of Autism like myself. I have played with the Schizophrenics, and people with Anxiety disorders. And we all had fun. Despite our hang ups, we acted like decent human beings, and most of the time we weren’t the ones that needed to be told to grow up. However questions and arguments will happen, and you will have the final say on if one party is right or wrong, if both are right and wrong, and so on. Or if things should be altered for the flow of the story and how the charecters shape it.
This is particularly good with some home brew classes and races. I have seen mech pilots and warg players. I have seen bunny people and variation of ratfolk closer in design to the Skaven then anything else. I have even played next to a player who had a monk Pegasus. I will leave it to you to figure that out.
In these cases, you are going to help keep things from being over or under powered.
You also have to make sure that things progress in a manner that helps everyone not do something jerkish to other charecters or would cause needless problems for the group. Of course this means lawful, chaotic, or evil stupid charecters and by extention their players. If they are too problematic, you have to deal with it before it gets nightmarish.
How to be a Great Game Master
The youtuber does videos on how to handle different situations that pop up, world building, and generally how to be a good Game Master. In particularly, look up his video on how to handle the dreaded Murder Hobo.
https://www.youtube.com/channel/UC1F4eMw3W_rHBfxf9_m1hbw
Seth Skorkowsky: Another ryoutube that focuses on the table top, but he does both tips and tricks for the GM and as a Player Character. Particularly the worst kind of players and characters.
https://www.youtube.com/channel/UC1F4eMw3W_rHBfxf9_m1hbw
See Bashew is good as he has these flash animated videos on different spells, and stratagies on how to use them (Book and Cook with Heat metal for instance).
https://www.youtube.com/channel/UCCXR2kCo7Lcw_BKwWxo09kw
Critcrab: He’s a youtuber who takes stories, both good and bad, from his Reddit page and narrates them over a background, usually a video game he is playing.
https://www.youtube.com/channel/UCSIvTcuNzmGlGBQ3owdMZ1Q
Whistle While You Work: here is the video to
So, No pressure and have fun