The Western Kentucky Tornado Relief bundles are a coordinated response from OneBookShelf and DriveThruRPG publishers.
Arium is an RPG which also contains rules for your gaming group to build their own campaign setting.
UK Games Expo's free to attend internet convention "Virtually Expo" is on right now, and it has been another busy RPG news week.
Arium: Create is a standalone worldbuilding toolkit that could work with any RPG. Arium: Discover could allow you to roleplay essentially any genre in a streamlined fashion.