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:

The 2.5GB heavy Community Pack #1 for Sword Coast Legends is now available for Linux on Steam.
It includes a lot of bugfixes and improvements (like new skill trees), but also many new items for the "Dungeon Master"-mode.

Here are the Release-Notes:

Companion Skill Trees: Players who complete the various SCL companion quests within the player campaign will gain access to unique companion specific skill trees for use on their characters.

The Fall of the Dungeon Guardians, a game inspired by Dungeon Master, is now available on Steam for Linux.

Description:

The Fall of the Dungeon Guardians is an RPG Dungeon Crawler game, in First Person View, inspired by classics like Dungeon Master™ and Might & Magic®, but featuring a modern combat system based on the triptych “tank/damage dealer/healer” mechanism.

The first big patch for Wasteland 2: Director's Cut has just been released. It fixes a lot of bugs, which were troubling players since release.
For example: some party-members -if dismissed- did never return to the HQ and were lost forever.

Here are the extensive Release Notes of this patch:

Wasteland 2: Director's Cut Patch 1 Release Notes

The Linux-version of Sword Coast Legends can suffer from graphical and other bugs, like

Sword Coast Legends, an epic RPG set in the Worlds of (A)D&D, is now available for Linux on Steam.

Description:

Set in the lush and vibrant world of the Forgotten Realms, Sword Coast Legends offers an all-new way to enjoy the time-tested magic of playing Dungeons & Dragons as a shared storytelling experience.

The revamped version of Wasteland 2 aka Wasteland 2 Director's Cut is now available on Steam for Linux!

Please remember to read the Known Issues and the FAQ before.

EDIT: It's also available from GOG.