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Knights of the Crusades Steam Key: Official PC Key, Instant Delivery

Yes. Every Knights of the Crusades key we sell comes from a distributor authorized by the publisher.
Open Steam, click Games, choose "Activate a Product on Steam", then paste your key. Knights of the Crusades is added to your Steam library right away.
Some keys only work in certain regions. This page shows where this Knights of the Crusades key can be activated before you buy.