Slitherine

Just purchased Flashpoint Campaigns, Red Storm and Germany Reforged. Was able to register my serials for both. Was able to get steam key for Red Storm. When I try to get Steam key for Germany Reforged it acts as though I haven't registered a serial for it yet, and if I try re-registering with the Germany Reforged key I'm told that key is already in use.

To install Flashpoint Campaigns: Red Storm Player's Edition on Steam you need to redeem a Steam key and then activate in your Steam account.
In the case of Flashpoint Campaigns: Germany Reforged you don't need to redeem the Steam key, as the key provided is already a Steam key.