OUTDATED: Better version down below.
Okay I will try to clarify what I said before.
For the steps on how to get it to work. Don’t have any steam open at the start of this. First launch Steam in Wine. You will have to start the download of whatever game you are wanting to download in it. Wait until it at least 1% on the download then close Steam completely. You should find the the partial download files under your wine steam downloading folder. In my case for my default install of wine, the path is this:
“/home/yourusername/.wine/drive_c/Program Files (x86)/Steam/SteamApps/downloading/”
Inside that folder you will find a few files and possibly a few folders. In my case there were five files and one folder for the game I was downloading at the time. You need to copy everything in that downloading folder into your Steam for Linux downloading folder. In my case that is located at:
“/home/yourusername/.local/share/Steam/SteamApps/downloading/”
After you have done that, launch Steam on Linux as normal. Once it is open you can go to the downloads section in Steam and the game should be downloading in there. These are the steps I followed and I was able to get it to work with the one Windows game I had to test it on.
Once the game finishes downloading, you can’t launch it from Steam for Linux as it will still say “Unsupported Platform”. I haven’t figured out if there is a way around this yet or not. You don’t have to copy the files back to Wine either, it will install the downloaded game into wine’s folder. If you run a Desktop Environment and it creates an icon, double clicking that icon will attempt to load the Wine version of Steam like normal. What it does is allows you to download the Wine version of the game without having to stay in the Wine version of steam. This could help if you want to play some of your linux games on multiplayer while downloading the Windows game in the background.
Hopefully this clarifies the topic more.
