The second Addon for Pillars of Eternity, called The White March 2, is available now for Linux on Steam!

The official Announcement:

IRVINE, Calif. and STOCKHOLM — Feb. 16, 2016 — Obsidian Entertainment and Paradox Interactive today released the second part of their expansion to Pillars of Eternity, the award-winning title backed by dedicated fans of classic role-playing games (RPGs). The second part of the expansion, titled The White March – Part 2, concludes the epic story of Pillars of Eternity, and brings closure to one of the most successful Kickstarter campaigns of all time. With both parts of the expansion now released, Obsidian Entertainment has completed their record-setting crowdfunding campaign alongside backers who pledged millions of dollars to create the award-winning title. The White March – Part 2 is available today on Windows, Mac, and Linux PCs from digital retailers everywhere.

Trailer:

Source: Steam