Hey eugeneloza
In any case, if you made the translation with transifex, you should download the po file of the language from the website.
Then, to get the mo file out of it, the simplest way is to open the po file using poedit and save.
Poedit, by default, will create a mo file next to the po file.
Then, you'll need to tell the engine a new language is available here:
https://github.com/Bertram25/ValyriaTea ... guages.luaby adding a line, like:
languages[11] = { "Український", "uk" }
after the 10th.
Then, in the same folder than the binary (or the data), you can create a po/uk/LC_MESSAGES folder.
And copy the mo file as: po/uk/LC_MESSAGES/valyriatear.mo
Then, you can start the game and you should be able to select the new language.
(At the bottom of the list, so you might have to scroll down.)
Have a look at the windows installation to see how other languages do.
If you have problems with some of it, I'll add it in the git tip asap, if you want.
Best regards,