Quote Originally Posted by DracotheDragon View Post
due to the nature of Steam games thay have a .exe file that has a few differing lines of code so it has to launch though the steam DRM, with that said, if you bought heavenward's disk and tried to install it it wouldn't find the game and it wouldn't recognise the steam one as a game due to its different coding, and DRM protection..

if you added it via non-steam-games it wouldn't allow it to mix with a steam game in case f piracy, and also since it is a expansion it will also have its own code that steam will use to mix it in as a DLC from there store, in short there DRM basicly stops you from adding DLC or a expansion on one of there games UNLESS you get it from them.
This is not the case with FFXIV. You can open the ARR-Steam Edition without even having Steam open or installed by just finding ffxivboot.exe