Elisabeth Barrington reviewed
Slave Pits of the Undercity in 1981, in
The Space Gamer No. 35. She felt that the art was neat and organized, and on par with other art from TSR, although she felt that the maps required thorough study before play, as they are slightly too small for quick reference. Barrington felt that the module would not require much re-working, stating that it is "Recommended as is for
AD&D enthusiasts." ''Secret of the Slavers' Stockade
was reviewed in Different Worlds'' magazine in November 1981. The reviewer complained that the module was poorly edited, and that it would have been easier to use with a roster of monsters provided. However, he said the module was "reasonably well done" overall, and a "good, workman-like" adventure. He praised the development of the antagonists and the care to characterize the reactions of the various monsters. Anders Swenson reviewed
Assault on the Aerie of the Slave Lords and
In the Dungeons of the Slave Lords for
Different Worlds magazine and stated that "The two dungeon modules are quite different in style.
The Assault on the Aerie of the Slave Lords for all is complexity is basically a pair of rather ordinary graph paper style dungeons, just like the ones we all have constructed from time to time [...] In contrast,
In the Dungeons of the Slave Lords, while basically an underground crawl, is a seemingly realistic, (by FRP standards), situation." All four modules were reviewed by
Jim Bambra in issue No. 33 of
White Dwarf magazine, who scored them 7 out of 10 as a whole, and reported A4 as the best adventure. He felt they were tough and held some surprises for players used to hack-and-slash dungeons. He also said
Dungeon Masters needed to be creative and adaptive in describing dungeon rooms and remember that the occupants were dynamic and reacted to characters. Bambra was very critical of the editing done on the modules and pointed out several mistakes, concluding that "these modules should never have been released with such errors".
Ken Rolston reviewed
Scourge of the Slavelords for
Dragon magazine #133 (May 1988). Rolston felt that a lot of the new material added to develop the Slavelords campaign was "quite good, particularly the first two new chapters of campaign material which bring the characters up to the original A1-4 scenarios".
Dungeon Master for Dummies lists
Slave Pits of the Undercity as one of the ten best classic adventures. Scott Taylor of
Black Gate in 2015 rated the
Slave Lords series as #2 in "The Top 10 Campaign Adventure Module Series of All Time, saying "as it is legendary both in name and artwork, as well as having been done in two supermodule reprints, I have to say it certainly is a classic among classics." ==Notes==