Tabletop role-playing · probability notebook
Know what your dice are telling you
Worked probability for tabletop role-playing games: what a d20 roll under 40% really does, how 3d6 and 1d20 differ in shape, and how to build a character around the numbers instead of around hope.
02 notes chartedEach note lists the reference works it was checked against and shows its arithmetic in full, so a reader can redo every step at the table.
Dice Maths
What a skill check really measures
A d20 roll under a fixed number is not a 40% chance of anything simple. Here is the arithmetic, with a working calculator and the cases where it breaks.
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