The Basics

The Core Mechanic: Whenever you attempt an action that has some chance of failure, you roll a twenty-sided die (d20). To determine if your character succeeds at a task you do this:

• Roll a d20.
• Add any relevant modifiers.
• Compare the result to a target number.

If the result equals or exceeds the target number, your character succeeds. If the result is lower than the target number, you fail.

• Dice
• Rounding Fractions
• Multiplying

This material is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.