You've chosen an interesting idea for the game, and it's well done!
A few suggestions:
Stas, it's great to see that the game's description is in Russian, which eliminates the need for translation, but the website is primarily intended for English speakers. Therefore, it would be beneficial to translate the Russian version for them.
In windowed mode, it's difficult to see anything and play the game.
The text and screen centering could be improved. On my 2k monitor, the "settings" text doesn't fit in the button, and the settings menu opens with a link at the top left of the screen.