@barz
MY bad! I'm thinking of the Substance Suite by Adobe. It's native on Linux.
@micahbp yes, substance is available for linux, but who knows until when. Remember that Allegoritmic was the first owner. Adobe is not a great fan of Linux. Substance is for painting not for sculpting. Although is beautiful, we don't know if it will be with penguin systems forever. That's why it is importante learn some other software meanwhile Blender keeps doing miracles.
@barz
Agreed! Believe me, I have the same concern. But, I also have hope that, since Linux is gaining ground in the professional space, maybe they'll expand Linux support. Again, here's hoping.
@micahbp Zbrush is not native, but you can make it work following tutorials on forums. 3D Coat seems to be the solution but for some reason I can't sculpt a lot of details. Maybe I just need work more with it. Lack of experience with the app.