Dedale, thank you for your report, I just updated archive with missing libraries. Could you please redownload and retest?

"I wonder if it isn't an Ubuntu problem."
No it isn't, it's just you didn't install needed 32 bits libraries.
I updated the package with additional libraries, could you please redownload and retest?

Sure we are progressing.
Package updated with the libsndio library.

I can do that all night :D
Package updated with libwayland-egl.so.1.

Ooops url corrected. So what is the new needed library ? :)

One more time! Another package with libwayland-cursor.so.0
https://drive.google.com/file/d/1nImzaRjLlWCVMD_sEcoYQEx09HWCMipB/view?usp=sharing

Thank you for your contribution, but I have to think about another method.
I will try to compile a static build.

Hello,

today DevilutionX 64 bits is finally promote "stable":
https://github.com/diasurgical/devilutionX/commit/c52464d2278660cbfe6c23ea48d31d82882d205b

So I wrote a Lutris Script which "automagically" install Diablo Gog version with the last DevilutionX 64 bits version.
You will find it here:
https://lutris.net/games/diablo/
installer name:
Linux GOG + DevilutionX Linux 64 bits version

- Dependencies: You have to install libsdl2-2.0-0, libsdl2-ttf-2.0-0, libsdl2-mixer-2.0-0 libraries.
- Please report issue concerning this script on my github page:
https://github.com/legluondunet/MyLittleLutrisScripts/tree/master/Diablo

Hello Dedale, could you try this package:
https://github.com/legluondunet/MyLittleLutrisScripts/raw/master/Diablo/devilutionx-linux-64.zip
It is the last DevilutionX 64 bits version recently promute to stable and compiled by myself.
It's the one I use for my Lutris installer.

I compiled it on Ubuntu 19.04...

Other thing: your 32 bits build didn't launch with this error message:

Quote./devilutionx: error while loading shared libraries: libSDL2_ttf-2.0.so.0: cannot open shared object file: No such file or directory

Try this command line:
sudo apt-get install libsdl2-2.0-0:i386 libsdl2-ttf-2.0-0:i386 libsdl2-mixer-2.0-0:i386 libsodium23:i386

you installed 64 bits libraries packages but you need the 32 bits libraries version too.