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These are connected and end in an epic final. My main appeal are the single player campaigns. Then there are new types of terrain with effects and quite a lot useful additions to the map editor (My experience here is limited as I did not spend much time with it.
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These are truly powerful up to game breaking levels and some of the single player campaign evolves around this. Additions: There are a few new artifacts, an additional artifact can be equipped and there are more powerful artifacts that are a combination of lesser ones. The additions are small except of cause the single player scenarios. It is more of the same of the main game (With only a few new additions). Strangely it is also a game were fans and haters both use the same argument.
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It is more of the same of For me this is a really good expansion.
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