I bought this as part of the ultimate sci-fi pack. Most of these icons are really good, but this specific package includes trademarked iconography. Specifically, "the red cross on white backgrounds" are trademarked by the organization "The Red Cross" and protected by the Geneva convention. If a game developer were to use these icons in their game and release it, they would face a cease-and-desist or lawsuit from the Red Cross. I would strongly advise the creators of this package to change the colors, so that they DONT contain the specific combination of a red cross and a white background, since this IS violating a trademark, and Red Cross has become quite litigious.
Hope this helps.
Cheers for the nice icons.