Don't feel confident with your English? This is the place to ask in your native tongue. Spanish, German... Not sure what else we speak here, but give it a go.
I see, there is no enough fonts:
e.g. when I tried to use russian words
(with the cyrillic letters) they are dusplayed
as spaces.
I hope, it is not hard to add any codepage support
(KOI8R or - better - UTF8)
currently, armagetron uses a very limited ASCII/texture based font system. a while ago there was talk about redoing the GUI and possibly rendering engine. As far as I can tell, that would be the point when this becomes possible. This will be after the 0.2.8 release.
This forum was originally intended to hold questions in foreign languages (at the time of creation, there had been one or two questions is German I believe).
Point is currently, cryllic is not possible in Armagetron, as Walking Tree said, due to its limited font system. At some point this will be fixed, and knowing that there are users outthere for whom this would be useful is a step towards getting it done.