I received an email today from 'The Masked Dungeon Master' asking how I would go about adapting an old Judge's Guild product called Frontier Forts of Kelnore. This is a thirty page adventure location system in Judge's guild style. It has a wide variety of applications for OSR & old school games.
"Frontier Forts of Kelnore is a supplement for fantasy role-playing games published by Judges Guild in 1978."
The supplement was written by Dave Sering who did a number of JG products & this book provides everything a dungeon master needs to generate any number of weird or odd fortresses for explorers & adventurers to stumble upon.
"Multi-level adventure generation system; tables & charts to build scenarios; traps, monsters, treasures, maps; three complete examples given."
Frontier Forts of Kelnore isn't the usual Judge's Guild products that that gets tons of fan recognition these day. But its one that I own & have had lots of experience using it for generating large networks of fortresses & ruins in wilderness adventure settings. My most recent brush with Frontier Forts of Kelnore is using the fortresses is for a network of Hyberorean forts that were abandoned during the Green Death in Astonishing Swordsmen & Sorcerers of Hyperborea second edition.
In Lamentations of the Flame Princess Europe the fortresses were abandoned during the Black Plague & were being used by a cannibal cult of demon worshipers. Frontier Forts of Kelnore was also used as staging ground for an interstellar invasion for or dangerous aliens in Star Ships & Spacemen second edition by Goblinoid Games.
These same forts were also used as stand ins for several Roman Empire style forts in Spain & Germany in LoFP. These same forts also were stand in ruins in Dark Albion's England and parts of Europe. They make excellent dungeon adventure locations. Judge's Guild material depends on a very vivid imagination to employ it constructively.
For pulp & super hero games Frontier Forts of Kelnore is a great resource for creating abandoned Spanish ruins & dungeon locations along the trails of the Wild West. These can serve as everything from vile villains lairs to bases for PC's who need a secure location for their adventurers. Several of Marvel Science Stories use this exact little trick to highlight some of their heroes adventures & it works quite well.
These types of fortresses also make excellent locations for various cults of Chaos to operate out of & for many a would be conqueror to stage his or her operations out of.
I've also used this product for the Gangbusters rpg as a smuggling location to stage various operarations for gangsters and outlaw gangs operating up the California /Mexican deserts. For Amazing Adventures! the pulp adventure style games are not at all limited except by the dungeon master's imagination.
All in all there's a lot of things that can be done with Frontier Forts of Kelnore with some time & patience.