For the Coop-Multiplayer-game Payday 2 a new (paid) DLC has been released on Steam: "San Martín Bank Heist" (Bundle).

Also a huge free patch was published.

Welcome back to Sunny Mexico!

Ryan C. Gordon aka Icculus, well known for many good Linux-ports, announced on a Patreon-post that a modernized Linux-version of Descent 3 is now available on Steam!

On Steam the Patch Update Vol.8 (1.0.11) for SUPERHOT has been released.

It finally fixes some long outstanding problems in the Linux-version of the game:

Patch Update Vol.8 (1.0.11)
SUPERHOT - SzymonSuperhot

Hi there

How about that? Another day, another patch.
This time we showed a bit more love towards Linux players.
Let's see what bugs had to say night-night this time:

Feral Interactive have released a 12.1 GB huge patch for the Linux-version of Deus Ex: Mankind Divided.

This patch updates the game to the same patchlevel as the Windows-version, also some Linux-specific bugs have been fixed:

1.0.4 - November 30th 2018 - Linux

For the Multiplayer-Shooter Verdun the huge ANZAC-Update has now been released for Linux on Steam.

It adds the troops of the Australian and New Zealand Army Corps to the game and improves many things audio- and sound-wise:

Game Update - Welcome the ANZACs massive sound update!

1918 Australians as could be found at Villers-Bretonneux

The newest update to the Zombie-Parcour-game Dying Light adds a complete new game mode (Prison Heist), a new location (Prison Island) as well as a new enemy (Sgt. Deathrow):

This Month in Dying Light: New Location, Game Mode Much More

This month we’re going big on new, free content for Dying Light. Starting today with a double content drop featuring a brand new location, a fresh game mode, a fearsome new enemy and a community bounty.

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":