It would be nice if there was a possibility to choose the app language - translate all the options (Games, Configuration, buttons, modes). Or at least make it possible to let the community translate the app.

I see it this way - xml/txt files inside the specific app folder (translations/app_translations/ui_translations/something like that). Either the app would scan the folder and load the files (some example file with the English text could go there), or you'd just create files for specific languages with English texts, so people would have it easier to translate.

If specific value isn't defined in the translation file, you'd display the English text by default. Why? When someone shares their translation, then there's an app update which adds some new options, if you use the custom translation file, the new options will be in English instead of crashing (null) or being empty strings.

I know it will probably require a lot of work and refactoring, so just an idea for the future.

I'll most likely translate the UI to Polish language if you'll add the feature at some point. I did some community translations before - for example I'm in the 7DVR credits for the Polish translation of the VR mod for 7 Days to Die. I also have my Polish language translation for Vertigo Remastered on nexusmods, and some tv shows subtitles here and there :)

Another great suggestion. As a matter of fact, I am currently reworking the tutorial to be in a somewhat better shape, and I had ideas about localization for it.. but it included changing the language based on which language you had downloaded etcetera, which is a change I don't feel like I have time to implement at the moment.

However! I do believe it is high time that I soon implement a localization system. Thank you for the suggestions on how to implement it and your offer to translate the UI into Polish (That'd be awesome!). It would indeed require some rework, but nothing too painful. Hopefully I'll get onto this soon.