TheImpZA: Hi, So I own The Witcher 1 on Steam and GOG, is there someway to copy over the installed contents from the GOG installer to the steam install directory so that I don't have to download another 15 gigs? Thanks.
I've tried to do similar things with Steam, and there used to be a way to do it. However, once they added in the new steamapps\downloading folder and the new SteamPipe content format, just putting the game files into the relevant location in steamapps\common no longer works.
I also tried starting a download, then pausing it and exiting Steam, then copying the files into the created subfolder within steamapps\downloading, but on restarting Steam and resuming the download it just proceeded to overwrite the files, even though they were identical.
It has something to do with the appmanifest files, so maybe you can find out what it needs to be for the game, but I gave up in the end and just let Steam do its thing.