From the introduction: Trolls and Terminals helps you play in a world where, decades ago, a cataclysmic event shaped the world, changing regular people into creatures of legends, such as elves, dwarves, and yes, trolls. Best of all, unlike some similar games, the rules behind Trolls and Terminals fits on one sheet of paper and are free for anyone to download. Though, if you think Trolls and Terminals is fun, please check out our other products.