CIV4 Beyond the Sword installs/downloads 0 bytes

[onurkulak]

CIV4 Beyond the Sword

• Steam AppID of the game: 8800

System Information

• GeForce GTX 1650
• Driver/LLVM version: 440.64
• Kernel version: 5.3.0-7648-generic
• Link to full system information:
• Proton version: tried with 4.11 / 5

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

Symptoms

this is most likely not a proton problem but steam support is refusing to give me any help and they are forcing me to write it here.

when I try to download this game, it doesn't download anything, it immediately finishes after downloading 0 bytes.
I tried cleaning the download cache and changing my download servers, but they didn't work.

I can install and play other Civ4 clones just fine: base game and CIV4 COL are working fine but I couldn't install this expansion.

Reproduction

Clicking install on Beyond the Sword game.

[kisak-valve]

Hello @onurkulak, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to #179 (comment).