They won seats in the EU parliament, but didn't manage to enter the national parliament.
Since then their main issue has mostly died, the law allowing FRA to spy on all our outgoing communications passed and the pirate bay people where taken down. But there's not been much action about these issues since then, and as a protest party option they are completely eclipsed by the racists.
Lesson learned: Don't mess with the copyright mafia.
They won America with DMCA. They're even beating computer nerds in Sweden. The only win we've had lately is Trump killing the TPP. Thank goodness for that man.
They never got into the Swedish parliament, only to the EU parliament.
They did not perform very well in the Swedish elections (less than 1%, 4% is limit to get seats), and after their initial push their momentum seemed to die off.
According to my personal view, a large part why the Pirate Party would not succeed in Sweden was that the party members (not the 'sign up for free on a webpage'-members, but party leaders) and their activists were very different in ideology. Party members were strongly libertarian while activists were more on the left.
Since then their main issue has mostly died, the law allowing FRA to spy on all our outgoing communications passed and the pirate bay people where taken down. But there's not been much action about these issues since then, and as a protest party option they are completely eclipsed by the racists.