D20

D20

Mongoose Publishing's range of D20/OGL-based books are one of the most extensive and well-used around! They provide massive scope for extending and improving your campaign, from the famous 'Quintessential' class books that allow players to explore the very limits of their characters, to the Slayer's Guides, monster books that give Games Masters everything they need to make regular creatures feel fresh and exciting whenever they appear in adventures.

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  1. The Slayer's Guide to Hobgoblins

    The Slayer's Guide to Hobgoblins

    £2.99

    Bring the Hobgoblin race to life in the first of the Slayer's Guides! Towering over their smaller cousins the goblins and only a little shorter in stature than the largest goblinoid of all, the bugbear, the hobgoblins are a martial race, dedicated to warfare. Learn More
  2. The Slayer's Guide to Gnolls

    The Slayer's Guide to Gnolls

    £2.99

    In this book, you will find a colossal amount of information on gnoll physiology, habitat and society, giving you a fundamental level of understanding on how this race exists and interacts with the rest of the world. Players can learn the sort of combat tactics the gnolls are likely to employ against them and Games Masters are presented with guidelines on how to introduce this race into their existing campaigns. Learn More
  3. The Slayer's Guide to Centaurs

    The Slayer's Guide to Centaurs

    £2.99

    Centaurs have very ancient traditions, a complicated culture and a reason for living that goes far beyond merely protecting their territory. Games Masters can use the information within the Slayer’s Guide to Centaurs to give their scenarios a lot more depth, portraying this race in a manner players will never forget. Learn More
  4. The Slayer's Guide to Troglodytes

    The Slayer's Guide to Troglodytes

    £2.99

    In the past many Games Masters have simply used Troglodytes as just one more form of bipedal sword fodder for adventuring parties. Their skill with javelins, foul scent glands and chameleon ambush abilities combined with relatively large numbers made them tough opponents even when confronted by experienced groups of adventurers. Despite this, they have rarely been treated with the depth and detail such a race deserves and have been relegated to the rather dull role of simple bad guys. With this book, that changes... Learn More
  5. The Slayer's Guide to Amazons

    The Slayer's Guide to Amazons

    £2.99

    The Amazons' hatred for all things male-dominated is well known, and any one of their number can easily engage a man in single combat with a good chance of overcoming him. They have excellent wilderness skills and a preternatural awareness of their surroundings. All this, combined with their innate sense of sisterhood make any encounter with an amazon tribe a truly dangerous experience. Learn More
  6. The Slayer's Guide to Sahuagin

    The Slayer's Guide to Sahuagin

    £2.99

    What we really know about the sahuagin must be forever limited because they live in the depths of the ocean and we cannot reach their domain without magical assistance. The creatures of the deep, our friends such as the aquatic elves, are similarly limited in what they can learn because the two share such hatred of one another, preventing anything more than the briefest of observations usually before blood must be spilt. Learn More
  7. The Slayer's Guide to Bugbears

    The Slayer's Guide to Bugbears

    £2.99

    Bugbears are cunning adversaries, creatures that rarely fight to the death, preferring to flee from a lost battle in order to nurse their vengeance for another day. Adventurers who believe they can simply wade into a horde of bugbears and slay them in glorious combat are in for a rude shock and are certain to fall prey to the myriad of traps and ambushes the bugbears use in their own style of warfare. Learn More
  8. The Slayer's Guide to Trolls

    The Slayer's Guide to Trolls

    £2.99

    Trolls are often first encountered singly or in pairs, often as powerful, brutish strong-arms for a group of the lesser goblinoids. Games Masters often throw a troll into the mix to toughen up an encounter with a band of orcs or hobgoblins, with little thought as to the reasons for such a relationship between the species. However, as will become evident as we explore troll culture, such mixed-race encounters are not only plausible but also even quite commonplace. Learn More
  9. The Slayer's Guide to Dragons

    The Slayer's Guide to Dragons

    £3.99

    Written by Gary Gygax, this book invites you to a journey into the hidden world of the dragon. Along the way we will learn the secrets of these tremendous beasts, their arcane sorceries, their mating habits, methods of warfare and more. Within these pages new types of dragon are revealed for the first time and numerous lairs are described. All this is but a sample of the occult facts we will learn as we dig into this newly discovered trove of dragon lore. Learn More
  10. The Slayer's Guide to Orcs

    The Slayer's Guide to Orcs

    £3.99

    Most of the hard information people have gathered about orcs has come under difficult circumstances, generally from those who somehow survived slavery under the orcs long enough to escape. Some other salient details have come from those heroes who have managed to actually capture a live orc, a fairly unusual circumstance. Orcs make dangerous prisoners, constantly scheming for freedom. Most people prefer to kill them rather than keep such an untrustworthy viper close at hand... Learn More

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