Difficulty
Roll Difficulty
When you decide to make an action roll, the GM typically sets the roll’s difficulty—the number you need to reach when you roll. This number is based on the situation and how effective your approach might be. If you’re making an action roll against an adversary, the difficulty is usually defined by their stat block.
The GM can choose to share this number or keep it to themself. Even if they don’t tell you the difficulty, they should make any potential consequences of your actions clear (unless the consequences aren’t something your character would reasonably be aware of). For example, “You’re putting yourself in melee with this guy, you might take a hit in return,” or “If you fail this jump, you might not make it to the other side.”