The Call of Cthulhu role-playing game saw birth on Friday 13th November 1981. Since that time it has been through seveneditions (including some 'half' editions). The following links lead to individual entries for the various rules printings of the game.
First Edition
檔案:Call of Cthulhu Rulebook (1st Edition).jpg
.jpg){kind=link}
1st Edition Box Cover
Call of Cthulhu, 1st Edition, 1st Printing 1981
Second Edition
檔案:Call of Cthulhu Rulebook (2nd Edition).jpg
.jpg){kind=link}
2nd Edition Box Cover
Third Edition
檔案:Call of Cthulhu Rulebook (3rd US Edition).jpg
.jpg){kind=link}
3rd Edition (US) Box Cover
Call of Cthulhu, 3rd Edition 1986
檔案:Call of Cthulhu Rulebook (3rd UK Edition).jpg
.jpg){kind=link}
3rd Edition (UK) Rulebook
Fourth Edition
檔案:Call of Cthulhu Rulebook (4th Edition).jpg
.jpg){kind=link}
4th Edition Rulebook
Fifth Edition
檔案:Call of Cthulhu Rulebook (5th Edition).jpg
.jpg){kind=link}
5th Edition Rulebook
Call of Cthulhu, 5th Edition 1992
Call of Cthulhu, 5th Edition (Limited) 1993
檔案:Call of Cthulhu Rulebook (5.5 Edition).jpg
.jpg){kind=link}
5.5 Edition Rulebook
Call of Cthulhu, 5.5 Edition 1998
檔案:Call of Cthulhu Rulebook (5.6 Edition).jpg
.jpg){kind=link}
5.6 Edition Rulebook
Call of Cthulhu, 5.6 Edition 1999
檔案:Call of Cthulhu Rulebook (20th Anniversary Edition).jpg
.jpg){kind=link}
20th Anniversary Edition Rulebook
Sixth Edition
檔案:Call of Cthulhu Rulebook (6th Edition).jpg
.jpg){kind=link}
6th Edition Rulebook
Call of Cthulhu, 6th Edition 2004
檔案:Call of Cthulhu Rulebook (25th Anniversary Edition).jpg
.jpg){kind=link}
25th Anniversary Edition Rulebook
Call of Cthulhu, 25th Anniversary Edition 2006
檔案:Call of Cthulhu Rulebook (30th Anniversary Edition).jpg
.jpg){kind=link}
30th Anniversary Edition Rulebook
Seventh Edition
檔案:Call of Cthulhu Rulebook (7th Edition).jpg
.jpg){kind=link}
7th Edition Rulebook