Installing GOG Game DLC

[PrivateXTC]

I installed a GOG game in desktop mode by adding it as a non-steam game using proton. Game works fine, but I cant add the DLC as the GOG installer can't find the base game. So, I have no idea how to install the DLC. Any one have any understanding of how to?

[@R+5]

try installing lutris, then use it to install with it the game. also check this tutorial: maybe it will work to install the gog dlc you need (read the comments too)

https://www.reddit.com/r/wine_gaming/comments/ejoh2x/manually_installing_games_with_lutris/

btw to install your game using lutris, you can try using a "install script" to make the process work like "auto-wizard", if theres one available (a install script is a script made by other user that makes all necessary things to auto-config and install a game).

[WarnerCK]

When you add a non-Steam non-native game to Steam, it creates a Wine prefix (the pretend Windows environment) just for that game. It does that for Steam games running through Proton, too, so that they don't interfere with each other, but it knows to associate the game and its DLC with the specific Steam app id rather than picking a number at random.

So you need to run your DLC installer in the same prefix as the one where your game is installed. There are a few ways you could do this.

You could use a Wine manager, such as Heroic or Lutris, to install the game and the DLC. You can either add the manager as a non-Steam game, or set the game and DLC up in the manager and then add the game as a non-Steam game.

You could copy the DLC installer to the prefix where the game is installed, edit the properties of the game in Steam so that it's running the DLC installer, run it the once, and then change the properties back so that it's running the game again.

Depending on exactly how the DLC installer works (if it's just replacing files, for example), you might also be able to just extract the files and then put them in the right place in the game's prefix.

On desktop Linux you would have the option of using your system Wine to specify the prefix and run the installer, but you can't do that on the Deck because the Deck doesn't have a system Wine.

Or you could buy the game & DLC again on Steam, where it's just a normal one-click install process despite the fact that the game was made for a completely different OS to the one that the Deck is using.

[PrivateXTC]

Thanks guys, going to try when im back home later. Will update if i managed to do it.

[PrivateXTC]

I tried and just gave up in frustration. It was a headache. Im going to try just installing it on windows then transferring the install folder over to the Deck. Seems people have had luck doing it that way. Dont know why its so complicated, maybe its just the GOG installer not liking anything that isn't windows.

[FandangoChristmas]

the only way i have been successful with gog is by using heroics games launcher

[Josh28492]

You need to find the compat data folder of your gog install and copy the path. Then under the "Start in" section of the properties type:

STEAM_COMPAT_DATA_PATH_"[paste compat data location here]" %command%

Then run the installer