Already announced in October 2017, now for the forst time a Beta-Version of Battle Chasers Nightwar for Linux is available on Steam.

And this is how you can get it:

Linux test branch is up!
Technical Support - Hooper 2018-01-23 16:37:04 UTC #1

We now have a test branch ready to try for Linux users!

The Red Strings Club, an adventure in a Cyberpunk-setting, is now available for Linux on GOG and Steam!

BTW: the publisher is Devolver Digital, the game has been developed by Deconstructeam.

The Linux-version of the RPG/Strategy-Mix Tower of Time has received a very big (3 GB in size) patch on Steam:

Hotfix 0.6.2.1334 and Linux Patch (big)

Hello All,

We just released a hotfix 0.6.2.1334. The following issues are fixed:

Issues

Achievements will properly unlock

Linux

We also updated Linux build. We have tested it on Ubuntu 17.04. If you have a different distro and run into troubles with cinematics, please let us know. Thanks.

The huge (over 3 GB in size) big update for Verdun which has been released today, makes it possible to switch seamless to the front of Tannenberg (if installed).

Also it changes a lot "under the hood":

The extension Napoleonic Wars for Mount & Blade Warband has received a huge patch which among a lot of other improvements adds a new faction: the "Rheinund".

PATCH NOTES (1.2):

The publisher Aspyr released today the exploration flying game called Inner Space on Steam for Linux.
It has been developed by PolyKnight Games.

Your greatest journey is within.

The Steam-version of the strategy game Tooth and Tail has received the Patch 1.1.1.

This makes it possible to play together (or against) with owners of the GOG-version: