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Archives of Nethys

Archives of Nethys

Pathfinder RPG (1st Edition) Pathfinder RPG (2nd Edition) Starfinder RPG

Rules Index | GM Screen | Player's Guide
Gamemastery Guide / Chapter 1: Gamemastery Basics / Adjudicating Rules

Core Principles

Source Gamemastery Guide pg. 28
These are the most important things to keep in mind.
  • Remember the basics of the rules.
  • Be consistent with your past rulings.
  • Don’t worry if you don’t have a specific rule memorized; it’s OK to look it up!
  • Listen to concise opinions from the other players.
  • Make a call and get on with play.
  • Review your decision after the session is over, if necessary.

The Basics

Source Gamemastery Guide pg. 28
Start by looking at the basic guidelines on page 491 of the Core Rulebook for the fundamental principles that can help you make rulings quickly and fairly. You should also be familiar with the rules relevant to encounters, exploration, and downtime, as well as with the section in Chapter 10: Game Mastering in the Core Rulebook on running those modes of play.

Consistency and Fairness

Source Gamemastery Guide pg. 28
As an arbiter of the rules and the person who’s setting the scene for the action, it’s in your best interest to appear fair at all times. Your main defense against appearing unfair is consistency in your rulings.

Achieving consistency is as easy as explaining why you’re ruling a certain way and comparing this ruling to past rulings you’ve made in a way that makes sense to your players. For example, you might say something like “When Torben swung from the chandelier and attacked the air elemental, I required an Athletics check as part of the action and gave a +1 circumstance bonus to the attack roll. Hanging from the rope bridge to attack the giant bat sounds similar, so why don’t you roll an Athletics check.” Do this any time it’s applicable when you make a ruling, but don’t feel compelled to do so for truly new rulings. Through the course of playing, your previous rulings will form a set of shared preferences and an understanding between you and your group—or even become formalized house rules. Over time, your players will think about these examples when planning their actions, which can improve consistency during play.

Looking Up Rules

Source Gamemastery Guide pg. 28
It is perfectly acceptable to refer to the rules during a session. However, you don’t have to do this alone. If you’re leafing through a book or searching an electronic reference, your players are idle. There are a few techniques that make these intervals more palatable for the players. Letting them know that you’re looking something up might prompt some players to also read the rule. This can increase the chances of collaboration and sets expectations for the length of the pause. Alerting your players that you’re going to take a minute and read the rules also lets them know that it’s a good time to tend to away-from-the-table tasks like refilling a drink.

Listen to the Players

Source Gamemastery Guide pg. 28
The friends around your game table are perhaps your best tool for achieving quick, fair, and consistent rulings. Sharing the task of remembering the rules makes rules discussions collaborative rather than combative, greatly increases the chances of accurate and comprehensive recall of the written rules and your own past rulings, and is true to the shared storytelling spirit of Pathfinder.

Asking if anyone knows how a specific rule rewards those players who have spent time mastering the rules and involves more people in the discussion. It signals to other players that you are willing to hear opinions before making a ruling, and it builds a more collaborative environment. In addition, for groups with access to a large number of sourcebooks or rules resources, you can ask different players to examine separate sources. This can greatly increase the speed and accuracy of a group’s rulings.

Approaching the rules as a group problem also means that you should never trivialize player concerns about a rule. You must also think about each player and assess how important the rules actually are to each player. Remember, though—while rules recall is a group challenge, making the final decision on the rules interpretation and getting the session moving again falls to you.

Make the Call

Source Gamemastery Guide pg. 29
Though all the above are great practices for making good rulings, often the best ruling is the one that keeps the game moving. Avoid getting so bogged down that it takes you several minutes to decide what ruling you’ll proceed with. Take what’s close enough and keep playing. If necessary, you can tell your group “This is how we’re playing it now, but we can have more discussion between sessions.” This gets you back in the action, puts a clear stamp on the fact that this is your decision in the moment, and empowers your players with permission to express their opinions on the ruling at a later time. When in doubt, rule in favor of the player’s request, and then review the situation later.

The best time to really go in-depth, possibly putting the group on a short break, is when a situation is life-or-death or has major consequences in a character’s story.

Take Time for Review

Source Gamemastery Guide pg. 29
When you make a decision you’re not sure about, look back over it at the end of a session or between sessions. You might change your mind—there’s nothing wrong with that! If you change or clarify your original ruling, inform your players before the next session. No one likes being surprised by a rule change. Even better, include them in a rules conversation just like you might during a session. The guidance on discussing rules with your players still applies between sessions. Unlike at-the-table rules discussions, there’s also much more time in these situations to read existing official rulings or sources.