Expansions
Ironclad made two micro-expansions, both of which were available on Ironclad's website and Stardock's digital service Impulse. After both micro-expansions were released, Stardock released a final retail version with both micro-expansions included. To prevent fracturing the multiplayer community the features of the expansion packs are only available if both players have the expansions installed. If not, the features are disabled for that game.
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