How about I put it this way: I shouldn't need to search for something which according to POSIX and XDG standards should be rather open to the lay user.

POSIX has nothing to do with this. If you even knew what POSIX was, you wouldn't have written that. Please take your ignorance elsewhere; you aren't helping anyone and are interfering with a topic from someone who's trying to get help, and who doesn't need to wade through this idiocy.

It's a series of standards regarding the operation and functions of a system. And I can't help but notice you ignored the XDG qualifier as well.

MacOS is supposedly POSIX compliant, just that they have doggedly taken steps to make it a computer system for the helpless.

It's about API compliance for program interoperability. Which macOS objectively is, and has nothing to do with a GUI search function in a file manager. It's literally insane that you'd think it's relevant. Because it was also not relevant. You have no idea what you're talking about, as usual. You've never used it, but would prefer to repeat hearsay which is mostly outdated or wrong. I have no idea what you think you're trying to accomplish with this stupidity. It certainly isn't helping the OP.

Didn't you have this argument last March? And again...

Anyway, here you go OP, bedtime reading:

https://developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/FileSystemOverview/FileSystemOverview.html

i was doing some research and in windows, the save-games are stored here:

c:\Users\NAME\AppData\LocalLow\InXile Entertainment\

so maybe on macos they are labeled in a similar way?

As 01kipper said above, the saves are in ~/Library/Application Support/com.krome.BTTrilogy. So, the question is definitively answered; hopefully the OP has managed to navigate there by now.

If anyone already has a PCGamingWiki account (or doesn't mind creating one), they should add this info to the appropriate section of the appropriate page on that site, since it's currently missing.

Thanks to everyone for your input. I am on the right track now.
the character names are easy to find, so all is left is to locate the exact position of the stats, exp and the gold of course.

thanks again and have a nice weekend

Android

Internal or external Storage: %STORAGE_PARTITION%/Android/data/com.inxile.BardTale/files/SavedGames/

iOS

Only accessible with iExplorer or other third-party apps: Apps/Bard's Tale/Documents/SavedGames

Windows

%APPDATA%\Local\inXile entertainment\The Bard's Tale\Saved Games

macOS/OS X

older Mac App Store: ~/Library/Containers/com.inxile.BardTaleOSX/Data/Library/Application Support/The Bard's Tale/SavedGames

old all other stores: ~/Library/Application Support/The Bard's Tale/SavedGames

Linux

Depends on distro, but often one of the following:

$XDG_DATA_HOME/data/BardTale/SavedGames

~/.local/share/data/BardTale/SavedGames

Not always guaranteed to work but opening a terminal window and then

find ~ -type d -iname '*bard*'

would probably have given you an idea of where to start looking as well.

Questions like these infuriate me. Not the people asking the question, but game developers.
Why does no one ever ask "Where do I find the word document I just created"?

A save file should be treated as a user-created document, stored in a user-friendly directory, not buried somewhere, like some disposable settings file.

Not just that, but the settings files too. On Macs, the logical place for those would be ~/Library/Preferences, but all too frequently the devs put them elsewhere.