Empire TV Tycoon, a game which is very reminiscent to "Mad TV" , is now available for Linux on Steam.

Description:

Empire TV Tycoon is a game for PC, Mac, and Linux in which you manage a TV channel and fight for audiences taking decisions that will project your channel to fame and fortune.You will decide the content of your channel, select advertisers, hire workers, make your own productions, hire actors,

Another Update for Knights of the Old Republic 2 has just been released on Steam also for Linux.

It contains new Achievments and a lot of Bugfixes.

Changelog:

10/15 Patch for all platforms: New Achievements and a host of bug fixes
Thanks to everyone who submitted achievements for this update! User generated content is loads of fun for us, and we hope everyone out there enjoys them.

It is 1.9 GB in size: the Update 1.5 of Dungeons 2, a "Dungeon-Master"-like game. It is available now for Linux on Steam.

This Update includes many smaller and big changes. Here is the complete Changelog:

The Steam Stealth Sale with huge discounts on Stealth-games has begun. The sale will last until October 16th.

There are also some good Linux-games offered, for example

- Invisible, Inc
- Outlast
- Masterplan and
- Mark of the Ninja.

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.

After being three years in Early-Access, today the Version 1.0 of Prison Architect has been released for Linux on Steam.
Besides many Bugfixes there is also now a complete new game-mode, called "Escape-Mode". In this mode the player tries to escape from prisons, which have been built by other players.

The complete list of changes can be read here.

Jotun, a hand-drawn action-exploration game set in Norse mythology, is now available for Linux on Steam.

Description:

Jotun is a hand-drawn action-exploration game set in Norse mythology. In Jotun, you play Thora, a Viking warrior who died an inglorious death and must prove herself to the Gods to enter Valhalla. Impress the Gods!