There are plenty medieval gothic fonts with latin characters, but I can’t find one with cyrillic characters. Can you recommend some?
The Cyrillic alphabet has a somewhat different genealogy from blackletter, although they share some common ancestry. From a typographic standpoint, Cyrillic blackletter seems to me something of an oxymoron, but if you really want to go ahead with it I would say Blonde Fraktur, which the designer herself points out isn’t really Fraktur and isn’t really medieval blackletter (and certainly isn’t blonde!), is probably a good choice if you’re going to be working with a modern Cyrillic character set.