In 1992, Mayfair release the Demons box set as the start of a sub-line of Role Aids. It was followed by Demons II (more demons!), Sentinels (angels!) and Apocalypse (guidance for ending your world in a myriad of ways!). The strong Hellblazer vibes were intentional — Hellblazer cover artist Glenn Fabry did the cover of Demons II. I can’t read this series as anything but directly taunting TSR’s family-friendly positioning of D&D, first by removing them completely, then by sanitizing the demons and devils with silly fantasy names in the Outer Planes Monstrous Compendium Appendix (1991).
Not content with having a run of box sets thumbing their collective noses at TSR, the Demons line also had not one but four monster supplements done in the style of Monstrous Compendium loose leaf sheets (there were already a bunch of these included in the box sets, even, complete with cardstock dividers) issued in similar folders. Honestly, this seems excessive, even to me, a noted lover of the infernal regions.
This is the first, Denizens of Vecheron (1992), by Mike Nystul (who would go on to design the very good The Whispering Vault). I don’t have the title page, so I am not sure who did the art, but it is quite nice and suitably awful. Vecheron is one of six demi-planes that make up the Infernus — it is dominated by an endless sea, and many of the creatures have a slightly nautical flavor. The entries are split between profiles of powerful individuals (the majority, and reminiscent of the Goetia, with a focus on their military ranks and such) and types of monsters. The personalities have a pleasing mix of terrifying attributes and tortured ones, leaving me with the distinct impression that it is no fun being a demon.
The organization really hosed these products. The Denons boxed set provided the Infernals courts and Lords of the Orbits, but no effort was made to display each Demons role and rank in the court. I recall that Marshall’s and Generals fulfilled different roles, but how they related to the different courts was very obscure. A diligent body could probably make sense of it by building a spreadsheet.
That being said: I love the array of demonic corruption available, and the Demons generally look really cool! There’s one dude with a gigantic book, a cloaked figure with multiple long tongues (I’m sure affiliated with lying), etc. still a favorite, just very confusing organization!