Agatha Christie - The ABC Murders, a Point-and-Click-Adventure featuring Agatha Christies famous detective Hercule Poirot, is available now for Linux on GOG and Steam.

Description:

Feral announced on their own Website, that XCOM 2 will have cross-platform-multiplayer and allows matches between the Linux, Mac and Windows-Versions of the game!

Friends of Simulations (and Trucks): get excited!

The American Truck Simulator is now available for Linux on Steam.

Description:

Experience legendary American trucks and deliver various cargoes across sunny California and sandy Nevada. American Truck Simulator takes you on a journey through the breathtaking landscapes and widely recognized landmarks around the States.

Features American Truck Simulator

The current Update for Dying Light adds a Deathmatch-Mode to the game.
A first PVP-enabled map has also been released.

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.

Punch Club, a mix between Fighter management sim with RPG and tycoon elements and interesting Story, is now available for Linux on Steam.

Description:

Train hard, fight crocodiles and find love. Earn your place in the Punch Club ranks, and discover who brutally murdered your father, in this choose your own adventure boxing management tycoon.

SteamDB currently reports heavy caching-Problems at Steam.
This leads to some information disclosure, like users seeing profiles of other users (incl. all games and personal data).

There is currently only one solution: DO NOT USE STEAM, and don't try to change personal data (adress, paying informations aso)!