This depends on publisher, actually. Some high-tier companies such as Bethesda, Rockstar, Blizzard sell their games in Russia with prices closer to international. But I suspect that Paradox would get nowhere with such prices.
Historically western videogames publishers did not sell their games in Russia themselves, considering it to risky. They sold rights to sell it to Russian "middleman" publishers, who had to put a very low prices, because of rampaging piracy. Pirates even had their own "publishers" with names, logos and translation with voice acting crews, and their CD discs were sold on every corner very cheap, so official publishers had to compete. Customers get used to it and would not accept rapid change to international prices, so Steam choose a sort of middle ground between original prices and international ones. Prices in steam are slowly rising, though, so I expect they will all eventually be around international. Unless some catastrophe happens.
But all of this slightly off topic of course.