The Yellow Clearance Black Box Blues is a 48-page adventure for the Paranoia RPG. It was written by John M. Ford, published by West End Games in 1985, and is generally regarded as one of the classic adventures for the game, and a milestone in the development of comedy in RPGs. It was re-released in 2017 for the rebooted edition of Paranoia that was co-designed by James Wallis, Grant Howitt and Paul Dean, and I swear that’s the first I’ve ever heard of that version, though it seems to be the only form in which TYCBBB is commercially available right now. $29.99 for a 48-page PDF from 1985.