The standard German retail box of the game includes a Steam version of the game. You need a Steam account to install this version of Chains os Satinav. A DRM-free version without required internet connection can be found in the "Die Abenteuer" box, which includes both Chains of Satinav and the sequel Memoria. Also, there is a DRM-free download version of the game next to the Steam key, whenever Chains of Satinav is in a Humble Bundle sale or store.
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