The Dwarfes, an interesting mixture between tactical RTS and RPG and created based on the famous book by Markus Heitz, is now available for Linux on Steam.

UPDATE: it is also available DRM-free at GOG!

Description:

Sky Break, a mixture of Survival, Action and RPG, has left Early-Access and is now available as a full version for Linux on Steam.

Description:

Sky Break is an open-world game on a stormy abandoned planet filled with wild mechas. Learn to master this world and to hack the mechas if you want a chance to survive.

The big (> 4 GB Download!) and free DLC Rage of Demons for the Action-RPG Sword Coast Legends has recently been released.

It contains new story content, a new playable race (Tiefling), a new playable class (Warlock) and new Dungeon Master options.

The content of the DLC is only available in English.

Original-Announcement:

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

The official Announcement:

The Extended Edition of Shadow Run Hongkong is now available for Linux on Steam.

This -for all owners of the Deluxe-Edition- free upgrade adds a over six hours long bonus campaign, developers commentaries and much more.

Developers Announcement:

A patch for Wasteland 2: Director's Cut has been released today which adds the long-awaited modding support.
Detailed information can be found in the official mod support guide.

The Community Pack #2 for Sword Coast Legends is available now for Linux on Steam.
Besides new content for the Dungeon Master mode it also invents the Drow as playable sub-class and fixes a lot of bugs, e.g. the infamous one, where items dissolve from your players stash.

Here are the complete release notes: