Champions is a superhero role playing game system. Affectionately referred to as the Big Blue Book (BBB) this book is the core rule book for the 4th edition of the game. Prior to the 4th edition the rules were spread out between five different books, which resulted in mechanics that were diffuse and inconsistent. The 4th edition was to fix both of these problems as well as combine all the rules from all the books into one cohesive whole.

The front cover artwork for all versions of the book was created by George Perez.

From the back cover, Champions contains:

• Hero System Rules. The award-winning HERO System lets you role-play any time, any place, any technology, and any power level. The unique character design rules allow you to create any character, whether he comes from a movie, a book or your own imagination. The revised HERO System is cleaner, better integrated and more streamlined than ever before.

• Champions Sourcebook. The Champions Sourcebook shows you how to use the HERO System to recreate the pulse-pounding action of comic books. It includes special sections for designing great characters and creating super scenarios. Learn to make the campaign feel like a comic book, and to keep the players entertained. 10 years of super role-playing wisdom are at your fingertips.

• Champions Campaign Book. The Campaign Book has everything necessary for instant heroics. A super team - the Champions - is set for action. A new multi-part adventure and over 20 fully-detailed villains are ready to play. There is even an introductory scenario to use if you've never played Champions before. The Campaign Book can provide hours upon hours of fun.