Sellers will always list items for sale in the native currency of
their Steam Wallet, and buyers will always see Community Market prices
expressed in the native currency of their Steam Wallet. For items
listed for sale in a different currency than the buyer's Steam Wallet
currency, we apply an exchange rate which we update daily.
- Community Market FAQ
Meaning, if you are looking at the market from a browser you are logged in on and you have funds in your wallet that are not in Rubles, you won't see Rubles.
You can, however, get around this. If you log out of the market and visit your URL, there are two parameters you can pass for force language and region changes.
For example, using the ever popular Supply Crate Key: http://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key?l=russian&cc=ru
Notice the l
and cc
parameters. The l
is setting the language to Russian and the cc
is setting the region to Russia.
Now, this doesn't appear to work on the entire page. The graph showing historical trends still appears to be in USD, even though the surrounding text is in Russian.
But, the individual listings of items did, in fact, change currencies.