AD&D 2nd Edition
164
Al Qadim
13
BattleSystem
2
Birthright
26
Council of Wyrms
3
Dark Sun
30
Dragonlance
61
Forgotten Realms
129
Gamma World
14
Greyhawk
44
Lankhmar
11
Mystara
10
Original D&D
11
Planescape
27
Ravenloft
59
Red Steel
2
Spelljammer
18
Unlisted Products
8
CC1 - The Ultimate Collector's Checklist - TSR & D20 System