From the introduction: CS-12 as a Stand-Alone Book CS-12 is a core system mechanic depicting the future from a set of rules for Tri-Worlds Universe, which will be the main rule-book and contains a detailed setting with a background. However, since this book is a Core—meaning everything about settings and fluff has been left out—it is best used as a tool for creating your own adventures. With this book you will be able to create detailed characters (there are well over 300 talents to choose from), with a modern to futuristic background. If you are into action movies then this system might be something you like; it uses the least amount of dice rolls possible while keeping everything going smoothly.