Paradox Interactive has announced the launch of
Heir to the Throne, the third expansion for grand strategy title
Europa Universalis III. Europa Universalis 3: Heir to the Throne includes a brand new Casus Belli system where wars have specific goals from start to finish, increased Holy Roman Empire and Papacy options for more powerful ruling, new diplomatic options for Merchant Republics, and more. A playable demo can be found
here.