The Pirate Party of Germany now has the support of 7 percent of the German electorate, according to a recent opinion poll.
The opinion poll was conducted by the ARD television network from a sample of 1,004 people, following the European Union summit held last week in Brussels, Xinhua reported.
The far-left Die Linke party also has the support of 7 percent of German voters, the survey showed, while the Green party (Alliance '90/The Greens) also looks to have increased its popularity to a 14-percent approval rating.
The trend to the left also includes the Social Democratic Party of Germany (SPD), which polled 30 percent according to the survey, a full ten points ahead of its 20 percent showing in the 2009 federal elections.
However, German Chancellor Angela Merkel's center-right ruling coalition, led by her CDU party and also including the CSU and the FDP, has the support of 35 percent of German voters.
Merkel is enjoying her highest approval ratings since her reelection in 2009, at roughly 66 percent, the ARD survey indicated.
The Free Democratic Party (FDP), a junior partner in the ruling coalition, has seen its own popularity fall below 5 percent, which is the threshold for representation in parliament.