•This book contains common knowledge and mechanics for all the players: heroes and referees.
•Longwinter: The Visitor's Book contains tools for running Longwinter at the table.
•The idea behind splitting Longwinter into two books is to make it easier for the players to share the world, while preserving the challenges and random events for the visitor alone.
•The setting is profoundly close to that of Witchburner (by the same author and artist).
•The content is mostly system-neutral. It references some 5E or d20-style conventions, but should work with most low-power systems easily.