This 432 pages long role-playing-game, is an OSR game (i.e. "old school simulacrum") featuring fighters, wizards, and other adventurers battling monsters to take their treasures in the depths of dark dungeons. If you are already familiar with other OSR games, then you already know the game mechanics. Yet, Fantastic Heroes & Witchery proposes a lot of options (classes, races, spells, talents, etc.) to play in the sword & sorcery genre, but also science-fantasy, sword & planet, grim fantasy, etc.