[2] WG7 Castle Greyhawk was edited by Mike Breault with Jon Pickens, with a cover by Keith Parkinson and interior illustrations by Jeff Easley and Jim Holloway, and was published by TSR in 1988 as a 128-page book.
[3] Rolston felt that publishing an anthology of "really low fantasy" scenarios dignified the style of play involving "this sort of bizarre, humorous, incoherent fantasy arcade adventure, where DMs took the totally illogical premises of the D&D and AD&D games, accepted them without question, then improvised thinly rationalized dungeon universes for us to wander about in, smashing and roasting things and having a thumping good time".
Some interpreted the publication as being a direct insult to Gary Gygax, who had recently left TSR in a dispute over ownership of the company, and by extension to early fans of the setting and D&D players in general.
[2] Lawrence Schick, in his 1991 book Heroic Worlds, described it as a "send-up of illogical 'gilded hole' labyrinths' and considered the dungeon levels "silly-but-playable", cited its "all-star design staff", and called Parkinson's cover "marvelous".
[2] Game designer John D. Ratecliff wrote in an article published on the Wizards of the Coast website: Despite being intended in fun, the unrelenting mayhem of Dungeonland and The Land Beyond the Magic Mirror creates a sense of bedlam, and the parody element opened the door for the later WG7, Castle Greyhawk (1988) -- thought by some at the time to be a deliberate attempt by TSR to destroy Gygax’s reputation in the wake of his departure from the company.
Castle Greyhawk’s assortment of villains -- Col. Sanders, the Pillsbury Doughboy, the cast of Star Trek, and others -- would be more in keeping with a bad episode of Scooby Doo than a dungeon crawl.