Updates to Half-Life 2, Half-Life 2: Episode One and Half-Life 2: Episode Two have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Half-Life 2
Added support for Mac
Added Steam Cloud support for save games
Added new achievements
Improved graphical effects

Half-Life 2: Episode One
Added support for Mac
Added Steam Cloud support for save games
Added new achievements
Improved graphical effects

Half-Life 2: Episode Two
Added... [read more]

To celebrate Gamespot's "All Time Greatest Game Hero" award to Half-Life's Dr. Gordon Freeman we are offering all Half-Life games at 55.8% off!

There are other great game heroes, and we're gonna let you play with them, but Gordon Freeman is THE BEST GAME HERO OF ALL TIME at least according to 55.8% of the gaming public - thank you to all who voted.
Get the full article at store.steampowered.com

Gordon Freeman is the protagonist of the Half-Life series, a Ph.D. from MIT, and one of the greatest game heroes of all time.
Get the full article at GameSpot.com

This is a puzzle-focused mod, where you don't use any firearms except the famous gravity gun. You need Episode Two to play this mod.
Get the full article at GameSpot.com

This weekend only! Save 66% on everything Half-Life. Or get the Valve Complete Pack for 10% off.

The Valve Complete Pack
Half-Life Complete Pack
Half-Life 1 Anthology (Pack)
Half-Life 2 Complete Pack
Half-Life Episode Pack

Half-Life
Half-Life: Opposing Force
Half-Life: Blue Shift
Half-Life: Source
Half-Life Deathmatch: Source
Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two
Half-Life 2: Lost Coast
Half-Life 2: Deathmatch
Get the full article at store.steampowered.com

Updates to Team Fortress 2, Half-Life 2: Episode 1 & 2, and Portal have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2, Episode 1 & 2, and Portal
Added support for the Novint Falcon

General
Added an option to the advanced multiplayer menu to select left or right handed view models
Fixed a bug where a spectator's wearable items could be seen floating around the player they were spectating
Fixed a bug ... [read more]

We have added support for Half Life.

To see our full list of HL servers, go here:

https://www.gametracker.com/search/hl/