Majesty series, Majesty 2.
Wait... didn't we an expansion? Seriously, the drive of those people...
Anyway, Majesty 2: Monster Kingdom is set to be the "final" expansion for Majesty 2, and will release on December 7th via digital download for a suggested retail price of $14.99/€14.99/£9.99.
In the meantime, you can check out this rather dramatic announcement video: