A tabletop RPG entitled Lone Wolf Adventure Game produced by Cubicle 7 and Joe Dever (before his untimely death) has been produced thanks to Kickstarter.
A videogame spin off was released on Android and iOS in late 2013 and ported to PC in November of 2014. There are even two Tabletop RPG versions of the books and a graphic novel spin-off, The Skull of Agarash (situated between the Magnakai and Grand Master series). It followed the adventure of Autumn Snow, a novice of Lone Wolf's New Kai Order. Another Spin-Off called the Autumn Snow series, written by Martin Charbonneau and edited by Dever, started to be published in 2016.
There are also 12 Legends of Lone Wolf novelizations roughly covering the first 8 books, fleshing out characterization and the series mythology, as well as a Magnamund Companion guidebook.
It takes place in the same world, with Grey Star the Wizard as the hero. There's also a four-books World of Lone Wolf spin-off (most often just called Grey Star) written by Ian Page and edited by Dever. There are 20 books out that follow Lone Wolf himself, then 8 after that following a student of his, with more being written. You can cheat, but you can cheat at Solitaire too. Each book can be read as a standalone adventure, but finishing a book allows one to gain an extra Discipline and carry over most (usually) of his inventory. The books take many RPG elements and incorporate them into playing/reading, such as Hit Points (called Endurance points), "Combat Skill", skills (Kai / Magnakai / Grand Master Disciplines), and an inventory system. In the course of his many adventures, Lone Wolf has to avenge his fallen brethren, foil the Darklords and other Evil Overlords, try to rebuild the Kai Order, and otherwise save his Sword and Sorcery world Magnamund many, many times. As the opening quote tells us, the hero is the Sole Survivor Fighter/Ranger/Psionic Knight Lone Wolf, who escapes the Big Bad's destruction of the monastery where he and the rest of the Kai Order lived. The Lone Wolf Gamebooks series (plural, containing the Kai, Magnakai, Grand Master, and New Order series) were written by Joe Dever the first book came out in 1984.