Why a game (unmodded) doesn’t work will usually be pretty obvious just from the errors you get

I might’ve just been lucky, but so far the only time I had to look up a fix was for battle.net launcher, which ever since a while back has to be done after every update.

https://old.reddit.com/r/linux_gaming/comments/yairmz/battlenet_fails_to_start_with_this_application/ituht4u/

The problem is in a hidden flag that’s set on the qwindows.dll file in lastest B.net version which makes it hidden from the app.

The fix is relatively easy, simply run this inside the Program Files (x86)/Battle.net/Battle.net.13801/platforms directory:

setfattr -x user.DOSATTRIB qwindows.dll

After this Battle.net will work again.

But when it comes to mods it can be a lot trickier, and I don’t really have a general purpose solution. Hopefully the game is popular enough that someone else has a guide on what to do.

I’ve never played subnautica so I don’t know, but if the mods have their own modified DLLs then you’re probably supposed to use DLLOVERRIDES, so maybe WINEDLLOVERRIDES="ribbon=n,b" since it’s called ribbon.dll

Some other issues I’ve had with modding is that the mod might expect the game to be in a certain directory or for directories to have certain names or there might be some problem because Windows isn’t case sensitive while Linux is.

Honestly the mods are generally not causing issues from my experience, it’s the mod loaders and what not.