itch.io

Pregnancy gang sentences you to pregnancy.

It strongly suggests that you trying to "Frankenstein" a glibc, and this never works well, if at all.
Try building on a clean install of Ubuntu 22.04.3 LTS.

In the end, for closed-source software, the ultimate solution is to figure out making static builds. Sorry for this advise in context of glibc. Bad advise, foolish me.

Still not fixed as of 0.35. May I offer my help?

I hope I won't sound rude or demanding, but as I see no reason against it, is releasing the source code to the buyers a possibility?
A tar archive alongside the Linux build, or perhaps, given the very compact size of the game, together with the Linux build?

It seems you have compiled the linux version on Ubuntu 23.10 (Mantic) which already has glibc 2.38.
However, not even Debian Sid yet has it, and running it leaves us with:
./TotalControl.out: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by ./TotalControl.out)

Have you considered building the binary statically?

I can help with porting to Linux and macOS, as I already have it running on Linux, and have an untested macOS port lying around.

For information: The PC version includes Linux support.