From the introduction: The Challenges Game System offers an easy-to-play alternative to fantasy game systems which are becoming increasingly complex. All of the basic information needed for play is organized into 8 pages instead of scattered among hundreds of pages of several expensive books. The Challenges Game System is intended to be a foundation. Game Masters and players can add whatever they like to the system. They can change any rules they want. But the 8 page guide will still remain a basic reference aid, a place where essential information can be quickly found. The Challenges Game System can be especially useful when playing or Game Mastering any of the various fantasy role-playing adventure modules published by Challenges International, Inc..