This primer will teach you how to build living, breathing worlds for your players to explore; how to host game and manage game sessions; and how to create powerful experiences of adventure that your players will talk about for years to come. Learn the secret to becoming a judge, an adversary, a worldbuilder, and a storyteller and become an arbiter of worlds! “Every Macris campaign starts with a rich, open world; the edge of a massive map; and the ability to find adventure in any direction. After playing in a dozen of his campaigns, I can assure you that Macris is the best prepared, most thorough GM on the prime material plane. He balances “deadly adversary” and “the party’s greatest supporter” perfectly. I’ve been lucky to contribute to some renowned video game worlds, and to discus world design with some of the most accomplished writers alive. And I’m honestly not sure there’s been someone more thorough at and passionate for world building than Macris since ... maybe Tolkien? (Okay, maybe G.R.R. Martin, but he’s not as organized or efficient.) It takes organization, creativity, and careful technique to build a massive world efficiently and deliver it effectively, and Macris can show you how he does it.” - Dr. Michael Capps, award-winning videogame executive, writer, designer (*Gears of War*, *Fortnite*, *Unreal Tournament, Unreal Championship*) “Armed with decades of experience as both a player and a designer, Macris cuts to the marrow with razor sharp insights in an unapologetic and often painfully insightful analysis of every imaginable facet of being a Game Master. From implication of play inherent in a game’s design, to world building, to the often delicate nature of unspoken social contracts inherent in the hobby, the guidance found in Arbiter of Worlds is a much-needed breath of fresh air to veterans of the hobby and a forged-in-the-fire bootcamp for those taking their first steps behind the screen.” - James M. Spahn, Ennie and Origins Award Winning RPG designer “A superb read. He makes his points the way you would expect a Harvard-trained lawyer to do. If you read this book, you are going to come out knowing real things you did not know before that will help you run games at the table…” - Courtney Campbell, Hack & Slash

    You’ve read both Dungeon Master’s guides. You’ve run a few games. You pick up ideas here and there on the net. Or maybe you're an old grizzled vet who has run games for 20 years.Maybe your game is feeling a little stale. Maybe your encounters didn’t run exactly as you wanted them too. Maybe you feel like you're stuck in a rut. Maybe you feel a bit overwhelmed when you have to come up with an exciting, creative game every week.You’re not looking for a huge tome on game theory. You don’t need yet another take on world-building. You’re looking for some practical tips you can use today to help you focus your energy in the right places and make some kick-ass D&D games for you and your friends. You want something you can read quick and start using right away.My friend, here is the book for you.This book was written to give you solid usable tips to help you build your story, design exciting encounters, and run a great game when you’re at the table. It’s a short book, designed to be read quickly and referenced often.Oh yeah, and it’s got some awesome original artwork by Jared Von Hindman of Head Injury Theater.This is a completely original book. Every chapter was written from scratch to help you focus on what’s important and get past some of the roadblocks we all face when designing a D&D game.

    IntroductionChapter 1 - AbilitiesChapter 2 - RacesChapter 3 - ClassesChapter 4 - SkillsChapter 5 - Feats and TalentsChapter 6 - EquipmentChapter 7 - Playing the GameChapter 8 - MagicChapter 9 - SpellsAppendix (Index)Intended as a full (drop-in) replacement for D&D 3.x PHB; published under the Open Game License.

    This 128-page accessory expands the living world of the druid in the AD&D 2nd Edition game, bringing new homes, character kits, personalities, spells, magical items, herbal lore, and a hundred details on druidic society, sacred groves, and high-level aspirations. This book has it all—don't leave the woods without it!

    Sam and the Devil Dogs may be relaxing in Tarna, but it’s not by choice—they’d rather be employed than resting up. When a dangerous job offer comes from “the old man,” Sam takes the Devil Dogs and their newest recruit, Dawson, on a perilous hunt to capture an unidentified warjack before their rival Steelheads or the horrific Cryx make a claim on the never-before-seen technology.Whether their mission will be worth the risk remains to be seen, but one thing is clear: Sam and the Devil Dogs will do whatever it takes to bring home The Devil’s Pay.

    This 128-page accessory gives you all the information you need to role-play exotic ninja, lone wolf operatives, and other character types - new character kits, special rules, and descriptions of the ninja's unique weapons and equipment. The Complete Ninja's Handbook brings life to these shadowy figures of myth and legend.

    But in the desperation of these last days, the world will take all those it can get: heroes, blackguards, madmen, and whoever else is willing to stand against the coming darkness. Will you fight the demons - or will you burn it all down and dance among the ashes? Who will you become when the world dies? Shadow of the Demon Lord opens a door to an imaginary world held in the grip of a cosmic destroyer. Enter a land steeped in the chaos and madness unleashed by the end times, with whole realms overrun by howling herds of beastmen, warped spirits freed from the Underworld, and unspeakable horrors stirred awaken by the Demon Lords imminent arrival.

    Easy-to-reference rules and tables appear on the inside panels of the screen; these are designed for the Dungeon Master's eyes only and comply with the rules in the 4th Edition Dungeons & Dragons core rulebooks.

    

    Brilliant burglars and easygoing farmers. Now The Complete Book of Gnomes and Halflings reveals the secrets of these two popular races - their culture, beliefs, and subraces (including two new subraces), as well as twenty-eight new character kits, from the gnome Goblinsticker to the halfling Forestwalker. If you enjoy playing gnome or halfling characters, or if you're a DM interested in creating an all-gnome or all-halfling campaign, this is the book for you!

    Scores of monsters, challenges, and advice give gamers the tools to create their own worlds and adventure, providing countless hours of gaming excitement. With streamlined rules and a focus on action-packed heroic adventure, this deluxe boxed set is the ideal introduction to the world of the Pathfinder Roleplaying Game, and the best starting point for a lifetime of pulse-pounding adventure!

    But he soon learns that rats in suits are even worse. What do you do when rats invade your barn? Kill them or negotiate? Mason finds out the hard way that force does not always work! An allegory of war and violence? A statement on the arms race? Neal Asher’s work takes Orwell’s Animal Farm into a grimly humorous future where evolution is outrunning humanity. You may never trust a rat again! “I’ve never read anything like MASON’S RATS before … it’s sharp, funny and highly inventive. There’s more fun in this one slim volume than in many a full-length novel!” – Stephen Gallagher

    This exciting world is complete with soaring cities, viscious wars, and a gritty mean-streets style that harkens back to the traditions of film noir.The Eberron campaign setting is updated into the 4th edition D&D family with the Eberron Campaign Guide. Featuring all of the character elements from the core rulebooks, this updated version of the Eberron world is a must for any gamer that likes the magic-as-technology, film noir, high-adventure campaign setting that was chosen from over 15,000 game submissions.

    Use it to build Dark Sun® heroes and thrilling D&D® adventures set in the Seven Cities of the Tyr Region, the Ivory Triangle, the Sea of Silt, and monster-infested wastelands—or plunder it for your own D&D campaign! The Dark Sun Campaign Setting provides exciting character options for D&D players, including new races, new character themes and class builds, new paragon paths and epic destinies, and new equipment. It also provides everything Dungeon Masters need to run 4th Edition Dark Sun campaigns or include Dark Sun elements in their homebrew campaigns. It has rules and advice for handling survival challenges, arena encounters, desert terrain, and adventure creation. It also presents a short, ready-to-play introductory adventure.

    When the cyborg arrives, she senses a worthy and dangerous opponent--one that's been dead for 800 years...