Their point is that the english translation button is already there, not to mention the game title and game page are already translated. Also point not being made english speaking people (especially americans) are used to reading poorly translated and/or poorly worded texts or translations of texts, so just put the script through any old free translator (although please don't use google translate, it is very bad at translating russian) and you have your translation... (Btw i know its russian because my sister took some russian classes and am good at remembering even the smallest details to tell a languages' lettering apart from others).
I already wrote that now the game has a completely different look. That is: the game that is now on the page of the game site: is already old for work. I do not have access to that old version, so I am not able to add working buttons to the old version that is now on the game's website.
About translation. I use "Reverso Context" and use "Glosbe" a bit. I know that "Google Translate" is not worthy of use.
I'm sorry I have to say it again, but I don't know Russian. Only Ukrainian. And the project will not be Russian at all. I will leave here a link to the site about the Ukrainian language. If, of course, it will be interesting:
https://www.ukrainer.net/what-is-the-ukrainian-language/