Hello all, thought I'd make this simple post to help out anyone in the future who might not be too familiar with LInux yet.

I'm running Manjaro (currently 22.1) and installed the game both via Minigalaxy & Lutris, found that the game was missing libFLAC.so.8 and the game wouldn't launch.
Now lib32-flac and flac are currently installed, but they include libFLAC.so and lib.FLAC.so.12 so I did the quickest, simplest, dumbest solution I could imagine.

I searched for libFLAC.so.8, found it in Crypt of the Necrodancer, and copied it to the game/binary/linux folder.
The game now launches and plays just fine.

So basically;

1. Get a game with the "libflac.so.8" file inside of it's directories.
*Such as "Luftrausers".

2. Copy the "libflac.so.8" file into the "game" directory of the game not working.
*Such as "ION Fury".

My system is running Debian 12 (64 bits) XFCE.
*Files are inside the "GOG Games" directory inside "home".

I came up with a solution that doesn't require having any other games wit hte same library file. I ran into the same problem running Ravenloft Stone Prophet under LMDE 6 (Mint Debian Edition). The installer installed Dosbox, and the folder that contained the x86_64 libraries didn't include libFLAC.so.8. So I went to the system's library folder:

cd /lib/x86_64-linux-gnu

and looked for a version of libFLAC:

ls libFLAC*

It had libFLAC.so.12.0.0 - a newer version of the same library. Perfect! Now all I had to do is add a link to the newer version. I went to the folder where dosbox kept its library files

cd "/home/me/GOG Games/Ravenloft Stone Prophet/dosbox/libs/x86_64"

and created a soft link from libFLAC.so.8 to the system's library:

ln -s /lib/x86_64-linux-gnu/libFLAC.so.12.0.0 libFLAC.so.8


Then I launched the game from the icon the installer placed onthe desktop. It launched and ran fine after that.