I had an email from Arc Dream this morning asking me to take down DG: Rogue Handler.
I thought I had stayed within the law. I had make it clear that Delta Green was their property, and included their copyright information. I had avoided their product name in the title and on the cover and avoided their trade dress/style.
I had even made it very clear that you would need to own their game to use these addon rules.
It clearly wasn’t enough, so I have taken the book down, I cannot sell it.