Blueholme Journeymanne Rules, softback OSR roleplaying game, by Michael Thomas
“The BLUEHOLME™ Journeymanne Rules are a table top fantasy roleplaying game which emulates the game play of the original basic rule book, popularly known as the Holmes Edition or simply the Blue Book. Unlike those basic rules, however, this book allows for characters of 1st to 20th levels, and include everything the referee could possibly need to create and run a campaign in the Underworld, the Wilderness, or the Realm: monsters, magic, treasure, and … well, what more do you need? BLUEHOLME™ Journeymanne Rules are fully compatible with the BLUEHOLME™ Prentice Rules, and can be used with most old-school adventure modules.”
Blueholme is an OSR game based on the Holmes Basic Set of D&D (D&D’s first ‘Basic’ set, published in 1977).