Call of Cthulhu - Sixth Edition 

The Great Old Ones ruled the earth aeons before the rise of man. Remains of their cyclopean cities can still be found on remote islands in the Pacific, buried amid the shifting sands of vast deserts, and in the frozen wastes of the polar extremes. Originally they came to this world from the stars. Now they sleep - some deep within the earth and others beneath the sea.
When the stars are right they will rise, and once again walk the earth.

Call of Cthulhu is a roleplaying game based on the works of H.P. Lovecraft, In which ordinary people are confronted by the terrifying beings and forces of the Cthulhu Mythos. 
To play all you need is this book, some dice, and your friends.

this book contains

• Expanded Lovecraft Background
• One-Stop Investigator Creation
• New Illustrations
• A Dozen New Skills
• Three Eras of Play: 1890's, 1920's and 1990's

And plenty more content

This Call of Cthulhu Sixth edition book is Published by Chaosium