Patrician IV - Valve
Updates to Patrician IV have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:
Patrician IV 1.2

Missions
  • Harbours in an entire region are now besieged by the local sovereign
  • Two new events for the Elderman to react to: Harbour siege and bad food supply
  • New town hall mission: City seeks help after a desastrous event
  • Two new guild missions: Supply food, hunt down pirates in a region
  • New tavern missions: Hunt down pirate, provoke uprising, transport evacuees
  • Revised some missions
Gameplay
  • Plagues now cause fatalities on advanced difficulty settings
  • Treasuries of AI-controlled cities increase more slowly (AI construction slowed down)
  • Buildings under construction by the player can now be canceled
  • Reduced volume of money jingle and added options.cfg setting
  • Underproduction of goods in a city is now displayed in the trade window of the market hall
  • Fire event revised and new event video added
  • Revised display of guild options
  • Revised construction and layout of streets
  • Decreased duration of sieges
Sea battles
  • Matched camera zoom levels with cannon ranges
  • Player-controlled vessels now stick to their last command until a new one is issued
  • Revised gunfire sound and line of fire
  • Wind speed and direction is now displayed by moving clouds
Interface
  • If a trade convoy is being attacked, a battle icon with tooltip is being displayed for two days on the sea map
  • In construction mode, buildings under construction are now indicated with a tooltip
  • The currently selected convoy is now marked in the convoy list
  • The convoy options window can now be accessed from the convoy list
  • Transferring goods between convoys is now possible by selecting a convoy and right-clicking on the target convoy
  • The convoy list now displays single, unorganized ships
  • Tooltips for the counting house administrator now display the production price of goods
  • Amount of goods for auto trade routes can now be adjusted in +/
  • 10 percent steps
  • Revised keyboard shortcuts and added a new options dialogue in pause menu
  • Convoys can now be saved on number keys (1...0)
  • Added new video events for rank promotion
Info displays
  • City info: Current amount of beggars and influx of beggars is now displayed
  • City info: If living space for individual types of citizens is filled by 90% or more, the amount of tenants is displayed
  • Negative values for city reputation is now displayed instead of 0%
  • Effects of fountains, hospital and chapel are now displayed
Bugfixes
  • Resolved issues with administrator and trade routes due to rounding errors
  • Revised city promotion
  • Fixed some rare crashes
  • Fixed AI building construction outside city walls
  • Fixed issues with sieging player convoys
  • Fixed issues with town discovery and city founding
  • Fixed issues with high desktop resolution (DPI) settings in Windows
  • Improved support for USB sound devices (e.g. Logitech G35)
Product Update - Valve
Updates to Serious Sam HD: The Second Encounter have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:
  • Serious Editor (beta version) is now available for installation from the Steam's "Tools" tab.
  • The game can now be started in the new "moddable" mode. It allows custom user-generated content (maps, player models, sound packs, etc), to be loaded.
  • Fixed some possible exploits on the Green Field survival level.
  • Fixed boosting of network priorities for enemies that the player is aiming at.
  • Recently aimed entities are no longer processed for player which plays on the server.

Disciples II: Rise of the Elves - Valve
Left 4 Dead 2 - Valve
Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
  • Fixed the fix of the fix of the fix of the door exploit in No Mercy
Mafia II (Classic) - Valve
Updates to Mafia II have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:
  • Achievement Support for Joe’s Adventure
  • Additional Leaderboard support for Joe’s Adventure
  • Fix to Chapter 14 problem
Team Fortress 2 - Valve
Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Team Fortress 2
  • Fixed another sentry gun exploit that let Engineers build multiple sentries
  • Fixed Engineers being able to build level 3 mini-sentries using The Wrangler for real this time
The Polynomial - Space of the music - Valve
Updates to The Polynomial have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:
  • Leaderboards update frequency reduced to minimize server load.
  • Controller fixes (can set controller speed now with same slider as for mouse, and controller also works when in traditional shooter mode).
  • Can disable crosshair by pressing H one more time.
  • Crosshair drawing moved to Lua for user modifiability.
Power of Defense - Valve
Updates to Power of Defense have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Power of Defense
  • Balance renewed
  • New levels with double bridges and traps
  • Multiplayer improved
  • Highscores improved
  • GUI improved
  • Localization improved
  • Performance improved
  • Bugfixes
  • New Achievements
Fallout: New Vegas - Valve
Fallout: New Vegas is now available on Steam!

Welcome to Vegas. New Vegas. It’s the kind of town where you dig your own grave prior to being shot in the head and left for dead…and that’s before things really get ugly.

Enjoy your stay.

Team Fortress 2 - Valve
Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Team Fortress 2
  • Fixed a sentry gun exploit that let Engineers build multiple sentries
  • Fixed Engineers being able to build level 3 mini-sentries using The Wrangler
  • Fixed the Holy Mackerel hit triggering the first blood event in Arena mode
  • Fixed seeing error particle systems in old demos
...