To me this series, together with that other gem from Frictional Games - Amnesia: The dark decent, are some of the most memorable and enjoyable games I've ever played. I have a Linux port of this series (which I either bought direct from Frictional Games or through Humble Bundle - don't remember which). I would dearly have loved to add the series to my GOG collection as well; however, to this day GOG does not provide a Linux port, which I find somewhat strange, given (1) its existence on other platforms, as I mentioned above, and (2) the availability of Linux versions of several other products from Frictional Games.
