The German Pirate Party had been doing fairly well earlier in the decade, breaking the 5% threshold for getting into state legislatures, but have been fading a bit in the last year, as immigration issues move to the fore and intellectual property rights became much less of a pressing issue.
However, Iceland is seeing their Pirate Party making the big time. They got 5% of the vote in their last election, but the forced resignation of a right-of-center prime minister for offshore financial holdings prompted a new election on this Saturday. The Pirates are at 20% or so in the polls, neck-and-neck with the right-of-center Independence Party for first place; Iceland has proportional representation, so the vote is somewhat spread out and coalition governments are the norm.
The Pirate Parties primary focus is for the free flow of information shorn of copyright protection; the Pirate Bay file-sharing website is the brainchild of the Swedish PP. Other than that, they are left-libertarian in general, but there's some of the Icelandic Pirates are more libertarian than others.
They've noted a disinterest in being part of a right-of-center coalition involving the current ruling duplex of the Independence and Progressive parties, so some left-of-center coalition seems to be likely. With the Pirates being the largest party outside of that conservative duo, they might have a Pirate PM when the dust settles.
That begs a little Gilbert and Sullivan, although we'd need to make it a Pirate Queen since Birgitta Jonsdottir is what passes for a leader of the anti-authoritarian party and thus the likely prime minister candidate from the Pirates.