(from the game website: https://www.hwrpg.net/) Hogwarts: An RPG is a free tabletop roleplaying game that lets you create collaborative stories in the world of the Harry Potter books & films.
The game uses simple rules, based on the Powered by the Apocalypse system, that let you get right to what’s fun about being a young witch or wizard at Hogwarts. Cast spells & brew potions, sneak around after curfew, play Quidditch, stand up for your friends & confound your rivals, and unravel mysteries in Hogwarts Castle. Learning the rules is easy & creating a character is quick, but the game supports long-term stories with lots of fun twists & turns.
Everything you need to create your own Harry Potter story is in one 17-page PDF.
Hogwarts: An RPG was designed by David Brunell-Brutman, based on the Harry Potter books by J.K. Rowling and Apocalypse World by D. Vincent Baker & Meguey Baker.