I am often asked the question ‘what is the one most important thing to keep in mind as a game master?’ And all too often we say ‘have fun!’ While this is true and very important indeed, it is not always helpful. So, in today’s video, I am talking about the 2 key principles or components of a great GM. Applying these 2 key principles into your preparations for your next roleplaying game and in your game master style is one of the first steps to ensure that your next TTRPG adventure is one that not only you will love but your players will enjoy playing in too!

As we continue our journey through The Practical Guide to Becoming a Great GM, we are
going to be looking at the key principles of a great GM.
The most important thing to remember is to have fun – BUT – that is not always helpful or

The key principles that every GM should have are: constraints and expectations.
Constraints are limitations of choice – YOUR choice.

Why are constraints so important?
• No limits = no options. You need constraints within which to work.
• They are a narrowing of focus.

Constraints require us to understand a number of things; however, to begin with, we can fall
back on a few solid things that we know for a fact:

• The rules system – TTRPGs have rules – those come with a lot of constraints.
• GM styles = constraints. Some are good, some are bad. Learn which is which.
• Your chosen world space/setting = constraints. Be creative but use the constraints
to your advantage.

Once we have those constraints, we need to be able to apply them to our adventures.
• Constraints are everywhere – anything on your world can give you constraints – use

Expectations – what do you and your players expect?
• Drawing on what you and your players expect and then using that.
• Let those expectations guide you – you never know what might come out.
• Constraints and expectations can be seen as the yin and yang of each other.
Expectations give us a lot of options and constraints reduce those options down so
that you can make choices for your adventure based on actual parameters, instead
of coming up with something that has endless options and getting lost in the
• Reduce your options so that you can make your choice from a limited number rather
than having an infinity of choice.

Catch a new video every Monday

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