Well, this could be developed in many ways to fit the Alien setting. A few pandemic virus ideas came to my mind: 1. A very contagious virus is found on a remote but habitable world with a only a few colonies. The colonists will struggle to survive and their contacts with their host company will be ...
Andy GW, I agree with you, a campaign source book would be ideal. I can come up with one shots all day but I want something that might last a little longer. I've been working on a campaign idea that we are going to start soon.