From publisher blurb:
The world’s ultimate adventure creation tool. Infinite possibilities await you in dungeons, the wilderness, the seas, skies, netherworld, and the planes of existence. Whither are you bound?
Years in the making, mega-supplement GWG2: OLDSKULL ADVENTURE GENERATOR is the “Rosetta Stone” of the Castle Oldskull system, the one master system which binds all of the present and future supplements of the Castle Oldskull OSR gaming universe together into a massive unified imagination engine. Harness the power of over 30,000 data elements to create dungeons, villains, quests, and more. Your worlds of adventure will never be the same! Using this 700+ page supplement, you can create millions of unique adventures for your players. There are so many options, that in a lifetime of play no two adventures will ever be the same.
I believe (but would be happy to be proven wrong) that this is the most ambitious and extensive adventure creation tool available on the market. Using this volume, you can create an entire campaign of multiple adventures, entailing wilderness journeys, dungeons, monster lairs, traps, tricks, treasure, and unforgettable tales. When coupled with the GAME WORLD GENERATOR, you can create your own world of endless adventure and allow the Players Characters to journey anywhere. And you will be creating new realms of wonder every step of the way. Do you need a new island, temple, tomb, forest, swamp, mountain range, netherworld, or sea? This book will show you how to build them all, each uniquely detailed with their own locales and opportunities for play.