Code,Title,Levels,Author(s),Published,Notes
X1,The Isle of Dread,3–7,David Cook Tom Moldvay,1980,Included in Expert Set. Ranked 16th greatest adventure of all time
X2,Castle Amber,3–6,Tom Moldvay,1981,Ranked 15th greatest adventure of all time
X3,Curse of Xanathon,5–7,Douglas Niles,1982,-
X4,Master of the Desert Nomads,6–9,David Cook,1983,Nomads Pt 1
X5,Temple of Death,6–10,David Cook,1983,Nomads Pt 2. Given 10/10 by White Dwarf.
X6,Quagmire!,4–10,Merle M. Rasmussen,1984,-
X7,The War Rafts of Kron,9–12,Bruce Nesmith,1984,-
X8,Drums on Fire Mountain,5–8,Graeme Morris Tom Kirby,1984,UK made
X9,The Savage Coast,4–10,Merle M. Rasmussen Jackie Rasmussen Anne C. Gray,1985,-
X10,"Red Arrow, Black Shield",10–14,Michael S. Dobson,1985,"Battlesystem required; uses elements introduced in X4-X5, but not a continuation of that series as such"
X11,Saga of the Shadow Lord,5–9,Stephen Bourne,1986,-
X12,Skarda's Mirror,5–8,Aaron Allston,1987,-
X13,Crown of Ancient Glory,7–10,Stephen Bourne,1987,Requires Companion Set
XL1,Quest for the Heartstone,5–10,Michael L. Gray,1984,Tie in to action figures. Given 4/10 by White Dwarf.
XSOLO,Lathan's Gold,4–6,Merle M. Rasmussen,1984,Solo Module
XS2,Thunderdelve Mountain,7–9,William Carlson,1985,Solo Module