Half-Life 2/en

From Valve Developer Community
Jump to: navigation, search

About Half-Life 2

"Welcome. Welcome to City 17. You have chosen, or been chosen, to relocate to one of our finest remaining urban centers."

Half-Life 2 Half-Life 2 (abbreviated as HL2) defines a new benchmark in gaming with startling realism and responsiveness. Powered by then-new Source Source technology, Half-Life 2 features the most sophisticated in-game characters ever witnessed, advanced AI, stunning graphics and physical gameplay. This was the first game requiring installation of Steam when it came out back in 2004.

Half-Life 2 is the sequel to the 1998 Half-Life Half-Life. A sequel to Half-Life 2 Half-Life 2 was released in 2006, titled Half-Life 2: Episode One Half-Life 2: Episode One. A virtual reality prequel was released in 2020, titled Half-Life: Alyx Half-Life: Alyx.

Half-Life 2 was later ported for the Original Xbox Original Xbox console in 2005, as well as for the Xbox 360 Xbox 360 and PlayStation 3 PlayStation 3 in 2007, bundled under The Orange Box (Console) The Orange Box.

The game has considerable number of physics puzzles which aren't that common in games like Wikipedia icon Doom, Wikipedia icon Call of Duty and Wikipedia icon Halo. Even Half-Life Half-Life has less puzzles.


RTX version

Main article:  Half-Life 2 RTX

A ray-traced version of Half-Life 2 is currently under development by Orbifold Studios, and promoted by Nvidia Nvidia, using Nvidia's RTX Remix tool.

This version aims to remaster the entire game with new RTX lighting, RTX reflections, PBR textures, and a lot more without changing the core gameplay, similar to Portal with RTX Portal with RTX.



Main article:  Half-Life 2 Credits
Half-Life 2 Credits

These are the official credits for "Half-Life 2" as released in October 2004:

  • Viktor Antonov
  • Ted Backman
  • Kelly Bailey
  • Jeff Ballinger
  • Matt Bamberger
  • Aaron Barber
  • Yahn Bernier
  • Ken Birdwell
  • Derrick Birum
  • Chris Bokitch
  • Steve Bond
  • Matt Boone
  • Charlie Brown
  • Julie Caldwell
  • Dario Casali
  • Yvan Charpentier
  • Jess Cliffe
  • John Cook
  • Greg Coomer
  • Kellie Cosner
  • Scott Dalton
  • Kerry Davis
  • Jason Deakins
  • Ariel Diaz
  • Quintin Doroquez
  • Martha Draves
  • Laura Dubuk
  • Mike Dunkle
  • Mike Dussault
  • Rick Ellis
  • Dhabih Eng
  • Miles Estes
  • Adrian Finol
  • Bill Fletcher
  • Moby Francke
  • Pat Goodwin
  • Chris Green
  • Chris Grinstead
  • John Guthrie
  • Leslie Hall
  • Damarcus Holbrook
  • Tim Holt
  • Brian Jacobson
  • Erik Johnson
  • Jakob Jungels
  • Iikka Keranen
  • Eric Kirchmer
  • Marc Laidlaw
  • Jeff Lane
  • Tom Leonard
  • Doug Lombardi
  • Randy Lundeen
  • Scott Lynch
  • Ido Magal
  • Gary McTaggart
  • John Morello II
  • Bryn Moslow
  • Gabe Newell
  • Tri Nguyen
  • Jake Nicholson
  • Martin Otten
  • Kristen Perry
  • Bay Raitt
  • Alfred Reynolds
  • Dave Riller
  • Danika Rogers
  • David Sawyer
  • Aaron Seeler
  • Nick Shaffner
  • Taylor Sherman
  • Eric Smith
  • David Speyrer
  • Jay Stelly
  • Jeremy Stone
  • Mikel Thompson
  • Kelly Thornton
  • Carl Uhlman
  • Bill Van Buren
  • KayLee Vogt
  • Robin Walker
  • Josh Weier
  • Doug Wood
  • Matt T. Wood
  • Matt Wright


  • Robert Guillaume - Dr. Eli Vance
  • Robert Culp - Dr. Wallace Breen
  • Lou Gossett, Jr. - Vortigaunt
  • Michelle Forbes - Dr. Judith Mossman
  • Merle Dandridge - Alyx Vance
  • Mike Shapiro - Barney Calhoun
  • Mike Shapiro - Gman
  • Harry S. Robins - Dr. Isaac Kleiner
  • Jim French - Father Grigori
  • John Patrick Lowrie - Citizens\Misc. characters
  • Mary Kae Irvin - Citizens\Misc. characters
  • Ellen McLain - Overwatch

Voice Casting:

  • Shana Landsburg\Teri Fiddleman

Voice Recording:

  • Pure Audio, Seattle, WA
  • LA Studios, LA, CA

Voice recording scheduling and logistics:

  • Pat Cockburn, Pure Audio


  • SDL

Crack Legal Team:

  • Liam Lavery
  • Jason Holtman
  • Karl Quackenbush
  • Kristen Boraas
  • Kevin Rosenfield
  • Alan Bruggeman
  • Dennis Tessier

Thanks to the following for the use of their faces:

  • Jamil Mullen
  • Art Min
  • Larry 'The Count' Heard
  • Ted Cohrt
  • Roger Guay
  • Frank Sheldon
  • Travis Dunlop
  • Daniel Dociu
  • Van Crowder
  • Joey Paresa
  • Chau Luu
  • Kim Harris-Jones
  • Michael S. Smith
  • Joe Cairo
  • Naomi Cotton
  • Sandro Consi
  • Lakeetra Gilbert
  • Erdin Grcic
  • Kanisha Speyrer
  • Warren Slough

Special thanks to everyone at:

  • Alienware
  • ATI
  • Dell
  • Falcon Northwest
  • Havok
  • and Don Kemmis, SLK Technologies


Dr. Gordon Freeman can collect wooden planks after destroying wooden boxes. This is unlike Half-Life 2: Deathmatch Half-Life 2: Deathmatch.


  • For more Half-Life 2 bugs, see this GitHub page.

This section only list various bugs that are commonly encountered.

Unresolved bugs

Warning.pngWarning:When Valve ported Half-Life 2 Half-Life 2 to Source 2013 Source 2013 during transition to SteamPipe, Valve forgot to compile some of the maps with LDR lighting. This means that if HDR is disabled (by selecting None or Bloom only in HDR settings), mat_fullbright will be set to 1, disabling lighting and making everything bright and flat (relevant GitHub issue). Because of this, HDR is required to play the game.
Some LDR maps also does not HDR lighting data by default.
This issue is not affected in previous version of the game (which use older engines), and is fixed in Half-Life 2: Update Half-Life 2: Update.

Resolved bugs

Icon-Bug.pngBug:There was a bug with Dropship's gun that was unable to turn, this makes the Sandtraps chapter much easier.[1] Presents since Source 2007 Source 2007 on Xbox 360/PlayStation 3[confirm] and Source 2009 Source 2009 on PC, since 2010 engine update.
Fixed in Source 2013 Source 2013 since 2022's Steam Deck update of Half-Life 2. Some third-party mods may or may not include this fix.

Other limitations

Warning.pngWarning:As of May 26, 2010, the branch of Source under which Half-Life 2 originally ran (Source 2006) no longer exists on Steam, and subsequently replaced by the updated Source 2009 (which later was upgraded again to Source 2013. Very, very old mods which base themselves directly on the game (as opposed to Source SDK Base) are unlikely to work any more.
This also meant that support for running Half-Life 2 on Windows 9x/ME/2000 have been also dropped.

Technical notes

  • In Source 2006 Source 2006 version of the game, being underwater at d1_canals_01, or in some area on that same map can cause performance drop. Fixed in 2010 with engine update (Source 2009 Source 2009).
  • Although Source mods are often described as being "for Half-Life 2", they actually use Source SDK Base. SDK Base is available to anyone who owns any Valve Source game and provides all of Half-Life 2's content (except maps and vcd scenes) on a static branch of the engine.
  • The Half-Life 2 Collectors Edition, which ships with Source 2004 Source 2004 version of the game, does not require Steam to run or update (similar to latest version), which meant that it will run on older systems with Windows 2000 and earlier.
  • The 64-bit Windows version of Half-Life 2, which existed around 2005-2006, is no longer available.

System Requirements

Windows Windows
Old Engine/Source 2004 - Source 2006

This system requirements applies to the retail version of the game, which runs on Source 2004 or Source 2006.

Windows Windows
Minimum Recommended
Operating system (OS) 98SE, ME, 2000, XP
Processor (CPU) 1.2 GHz
System memory (RAM) 256MB
Hard disk drive (HDD/SSD) 4.5GB+
Video card (GPU) Direct3D 9 compatible with DX feature level 7.0
Icon-Important.pngImportant:The only way to play the "Old Engine" version without Steam and without piracy/workarounds is to purchase or find the Collector's Edition copies, install then launch the game with 🖿hl2.msi instead of 🖿hl2.exe.
Warning.pngWarning:Old Engine version of the game does not fully support multi-core CPUs!
New Engine/Source 2009 - Source 2013

This system requirements applies to Source 2009 Source 2009 or later version of the engine (including the latest Steam version), it is more demanding to run due to the new lighting systems and other changes in the engine since Source 2007/Source 2009.
Additionally, the game no longer requires Steam in order to play, but some features, such as Achievements, Cloud Save, etc... are unavailable if the game was run without Steam.

Windows Windows
Minimum Recommended
Operating system (OS) 7
Processor (CPU) 1.7 GHz and/or Dual-core
System memory (RAM) 1GB
Hard disk drive (HDD/SSD) 6.5GB
Video card (GPU) Nvidia GeForce FX 5700
ATI Radeon 9500
Direct3D 9 compatible with DX feature level 8.0/8.1
Other HDR is required to be enabled (due to this bug)
Icon-Important.pngImportant:New Engine updates around 2012, drops support for Windows Windows 2000. Furthermore, Windows Windows XP and Windows Windows Vista was also dropped since the (Source 2013) update in 2022, which adds Steam Deck UI and other improvements.
macOS Mac
macOS macOS (OS X)
Minimum Recommended
Operating system (OS) macOS OS X 10.5.8, 10.6.3 or newer
Processor (CPU) Intel Core 2 Duo
System memory (RAM) 1 GB
Hard disk drive (HDD/SSD) 6.5 GB
Video card (GPU) Nvidia GeForce 8xxx series
ATI Radeon X1600
Intel HD Graphics 3000
Other HDR is required to be enabled (due to this bug)
Note.pngNote:As of February 15, 2024, the Steam Client no longer supported 32-bit games and/or macOS 10.14 or lower. Additionally, with the release of macOS 10.15 Catalina, Apple has dropped 32-bit support for all programs and games.
Linux Linux
Linux Linux
Minimum Recommended
Operating system (OS) At least Ubuntu 12.04, SteamOS 1.0 or
other Linux distros.
Processor (CPU) 2.0 GHz and/or Dual-core
System memory (RAM) 1 GB
Hard disk drive (HDD/SSD) 6.5 GB
Video card (GPU) Nvidia GeForce 8xxx series
ATI Radeon X1600
Intel HD Graphics 3000
OpenGL 2.1 compatible
Sound (audio device) OpenAL compatible
Other HDR is required to be enabled (due to this bug)
Note.pngNote:The system requirements for Half-Life 2 Half-Life 2 on Linux are unofficial, based off Windows/Mac info, as well as other Source games that support Linux, such as Portal 2.

See also

External links