The greatest cause for mutations in the Riven Realms is a mysterious arcane disease that people call the Taint. There’s no telling how it spreads or why it attacks the ones it does; its workings have eluded medical science altogether. These days, every third human on the continent is Tainted. The Taint begins with a period of incubation when the victim falls gravely sick and suffers seizures and spells for days or weeks. About half of them perish during this interval.

It's spring 1990 and I'm in elementary school. My best friend brings a book to school that he reads aloud to a small group of us during our big walks at lunch break. The book has a weird old wizard on the cover conjuring smoke from a crystal ball. More interesting are the illustrations on the inside: intricate black and white drawings of strange fantasy creatures and dungeon locations. The little book is Ian Livingstone and Steve Jackson's Warlock of Firetop Mountain, translated to our native language. Most of you probably know that it's a gamebook that you do not read from start to end but in branching numbered chapters that make the story personal and add replayability. Yet they are much more than simple choose-your-own-adventure books because they include a stat and combat system you have to manage throughout the adventure - albeit a really simple one.