Voadam
Legend
Yig Snake Granddaddy goes from level 1-14.Not sure what the third one is, but you can generally find them here
Yig Snake Granddaddy Acts 1-4 (PDF) | Petersen Games
petersengames.com
Ghoul Island Acts 1-4 (PDF) | Petersen Games
petersengames.com
The Big Sleep is the Tsathoggua one, it goes from 1-14 as well.
Skin Deep is the third one I own, it is doppelganger themed and goes from 1-14 as well.
Petersen Games has some others including a Mi-Go based one and a King in Yellow based one. The PDFs seem to be on sale for a bunch of these right now.