Tutorial

1) Download the original version of the game via Steam (i.e just take and install Shadow of Chernobyl in Steam).2) Download Lost Alpha.You can download it from the official site or Moddb.Official site is [ lost-alpha.com 3) Then locate the folder where you have stalker, for exampleMine is in D:\Steam\SteamApps\common\STALKER Shadow of ChernobylAnd just delete the entire contents of the STALKER Shadow of Chernobyl (Delete everything in it), the folder itself called STALKER Shadow of Chernobyl, we save!4) Run the installation of Lost AlphaDuring the installation, the path we specify is this:D:\Steam\SteamApps\common\STALKER Shadow of ChernobylA message that the folder already exists will come up, just click yes.5) After installing the game, go to D: \ Steam \ SteamApps \ common \ STALKER Shadow of Chernobyl, there will be a folder namned bins , Rename it to bin6) Now go to the library in Steam, and as usual run STALKER Shadow of Chernobyl.That's all!Tried as best as i could to translate it, But it was a couple of wierd things :PEDIT:Update: I just ran into the issue others have brought up that the overlay won't work with the patched versions.Fix: For me the fix was to run the steam exe as administrator (windows 8 64 bit), after shutting down and restarting steam the overlay worked. I went back and forth a couple times to be sure, and it worked.Thanks for the info Bearicus