Challenge #25
GDW: Generic (1986 )

Challenge #26
GDW: Generic (1986 )

Journeys: Journal of Multidimensional Roleplaying #1
GDW: Generic (1992 )

Journeys: Journal of Multidimensional Roleplaying #2
GDW: Generic (1992 )

Journeys: Journal of Multidimensional Roleplaying #3
GDW: Generic (1992 )

Journeys: Journal of Multidimensional Roleplaying #4
GDW: Generic (1993 )

Journeys: Journal of Multidimensional Roleplaying #5
GDW: Generic (1993 )

Journeys: Journal of Multidimensional Roleplaying #6
GDW: Generic (1993 )

Challenge #27
GDW: Generic 1 (1986 )

Challenge #28
GDW: Generic 1 (1987 )

Challenge #30
GDW: Generic 1 (1987 )

Challenge #31
GDW: Generic 1 (1987 )

Challenge #32
GDW: Generic 1 (1988 )

Challenge #33
GDW: Generic 1 (1988 )

Challenge #35
GDW: Generic 1 (1988 )

Challenge #36
GDW: Generic 1 (1988 )

Challenge #37
GDW: Generic 1 (1989 )

Challenge #38
GDW: Generic 1 (1989 )

Challenge #39
GDW: Generic 1 (1989 )

Challenge #40: Special Equipment Issue
GDW: Generic 1 (1989 )

Challenge #41
GDW: Generic 1 (1989 )

Challenge #42
GDW: Generic 1 (1990 )

Challenge #43
GDW: Generic 1 (1990 )

Challenge #44
GDW: Generic 1 (1990 )

Challenge #45
GDW: Generic 1 (1990 )

Challenge #46: Special Horror Issue
GDW: Generic 1 (1990 )

Challenge #47
GDW: Generic 1 (1990 )

Challenge #48
GDW: Generic 1 (1991 )

Challenge #49
GDW: Generic 1 (1991 )

Challenge #50
GDW: Generic 1 (1991 )

Challenge #51
GDW: Generic 1 (1991 )

Challenge #52: Special Bestiary Issue
GDW: Generic 1 (1991 )

Challenge #53
GDW: Generic 1 (1991 )

Challenge #54: Special Horror Issue
GDW: Generic 1 (1991 )

Challenge #55
GDW: Generic 1 (1991 )

Challenge #57: Introductory Scenarios Special Issue
GDW: Generic 1 (1992 )

Challenge #58
GDW: Generic 1 (1992 )

Challenge #59: Special Mysteries Issue
GDW: Generic 1 (1992 )

Challenge #60: 2nd Annual Swimsuit Issue
GDW: Generic 1 (1992 )

Challenge #61: Heavy Metal Issue!
GDW: Generic 1 (1992 )

Challenge #62: Origins/GenCon Preview Issue!
GDW: Generic 1 (1992 )

Challenge #65: 3rd Annual Horror Issue!
GDW: Generic 1 (1992 )

Challenge #70: 20th Anniversary GDW: 1973-1993
GDW: Generic 1 (1993 )

Challenge #76
GDW: Generic 1 (1995 )

Challenge #77
GDW: Generic 1 (1995 )

Traveller
GDW: Traveller 1 (1977 Box)
GDW: Traveller 1 (1981 Box)
GDW: Traveller 1 (1981 Box)
GDW: Traveller 1 (1982 Hardcover)
GDW: Traveller 1 (1982 )
GDW: Traveller 1 (1983 Box)