This is a blast from the past. An English answer to D&D, published in three (later extended to six) very pocket-priced paperback volumes (£1.75 it says on the back here!), promising that "within ten minutes you will be battling with your first deadly foe in a perilous adventure". It takes a little longer than that, to be quite honest, especially as you'll need a batch of players and a GM who has read the rulebooks, but the system is easy to pick up. It isn't as immediate as later editions of D&D, but it's certainly harder on the characters themselves - be prepared for fatalities in the adventures, which are geared to combat more than actual roleplaying. Not "The Ultimate Role-Playing Game" that the front cover promises, but a fair approximation of where fantasy publishing was at in 1985, taking advantage of the success of David Gemmell's Legend as well as the Fighting Fantasy and Lone Wolf game books, and pre-figuring D&D's Second Edition.