The Expansion Kit extends the Ironclads system to 1879, adds ships from all the major European powers of the same time period, new battles, and some new optional rules.Yet another expansion, called Shot and Shell, was later done by 3W.Note that 'Excalibre Games' made a reproduction of the expansion kit. And it is of inferior quality to the original Yaquinto version. The image show above is the Yaquinto version. If you look at the additional images, the first one shown is the Excalibur version box, and all but one of the remaining images are of the Excalibre version.Expands: Ironclads - BoardGameGeek