by Steve Jackson Games
I have also been collecting these seeds. I have enjoyed them all, particularly "The Master Of Lost Lore" for the Lich.
I would certainly buy a collection of DFRPG adventure seeds. It would be useful to include a couple of unkeyed maps (labyrinth, cave, building, temple, etc.), too, that people could plug into various seeds as needed.
Been collecting these seeds. Plan on using a version of a 'spider' seed this weekend. The players have been attacked by metallic spiders in the past, the "repair" versions will be a bit different. Unless they react with an all-out attack. 😲