Half-Life 2: Episode One: Difference between revisions
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|sdk = [[Source SDK]] | |sdk = [[Source SDK]] | ||
|sysreq = <span></span> | |sysreq = <span></span> | ||
* [[WP:Windows 7| | * [[WP:Windows Vista|Win Vista]], [[WP:Windows 7|7]] or later | ||
* 1.7 GHz and/or Dual-core | * 1.7 GHz and/or Dual-core | ||
* 1 [[WP:Gigabyte|GB]] [[WP:Random-access memory|RAM]] | * 1 [[WP:Gigabyte|GB]] [[WP:Random-access memory|RAM]] | ||
* 6.5 GB disk space | * 6.5 GB disk space | ||
* DirectX 9.0 compatible (with | * DirectX 9.0 compatible (with DX 8.1 level card) | ||
''New Engine only. For details, [[#System Requirements|see below]]'' | ''New Engine only. For details, [[#System Requirements|see below]]'' | ||
|distribution = Retail, [[Steam]] | |distribution = Retail, [[Steam]] | ||
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*[[WP:Random-access memory|RAM]]: 256 [[WP:Megabyte|MB]] | *[[WP:Random-access memory|RAM]]: 256 [[WP:Megabyte|MB]] | ||
*Disk space: 4.5 [[WP:Gigabyte|GB]] | *Disk space: 4.5 [[WP:Gigabyte|GB]] | ||
*[[WP:Direct3D|Direct3D]] 9.0 compatible [[WP:Video card|video card]] (with atleast DirectX 7.0 compatibility level or higher)<br>Some features such as [[HDR]] requires DirectX 9.0 or higher graphics card | *[[WP:Direct3D|Direct3D]] 9.0 compatible [[WP:Video card|video card]] (with atleast DirectX 7.0 compatibility level or higher)<br>Some features such as [[HDR]] and [[color correction]] requires DirectX 9.0 or higher graphics card | ||
<p style="color:white; font-weight:bold">Windows (New Engine):</p> | <p style="color:white; font-weight:bold">Windows (New Engine):</p> | ||
*OS: Windows [[WP:Windows 7|7]] or later<!-- despite steam requires win10, the game is drm-free so its still works with win7. Steam Deck update broke XP support however. --> | *OS: Windows [[WP:Windows Vista|Vista]], [[WP:Windows 7|7]] or later<!-- despite steam requires win10, the game is drm-free so its still works with win7. Steam Deck update broke XP support however. --> | ||
*CPU: 1.7 GHz and/or Dual-core | *CPU: 1.7 GHz and/or Dual-core | ||
*RAM: 1 [[WP:Gigabyte|GB]] | *RAM: 1 [[WP:Gigabyte|GB]] | ||
*Disk space: 6.5 GB (15GB+ recommended) | *Disk space: 6.5 GB (15GB+ recommended) | ||
*Direct3D 9.0 compatible [[WP:Video card|video card]] (with atleast DirectX 8.1 compatibility level or higher) | *Direct3D 9.0 compatible [[WP:Video card|video card]] (with atleast DirectX 8.1 compatibility level or higher)<br>Some features such as [[HDR]] and [[color correction]] requires DirectX 9.0 or higher graphics card | ||
{{Note|The Steam version is no longer compatible with [[WP:Windows XP|XP]] | {{Note|The Steam version is no longer compatible with [[WP:Windows XP|XP]] since the latest Steam Deck update.<br>User using these OS can downgrade to previous version of the game by using the {{code|previous}} beta branch (dated from Sep 2019). But please note that this older branch does not include all the bug fixes that were introduced with Steam Deck update.}} | ||
{{Note|Due to Steam dropped support on Windows Vista, users need run the game without Steam by running the {{code|hl2.exe}} executable directly.}} | |||
<p style="color:white; font-weight:bold">OS X:</p> | <p style="color:white; font-weight:bold">OS X:</p> | ||
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*GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000<br>OpenGL 2.1 compatible | *GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000<br>OpenGL 2.1 compatible | ||
*Audio: OpenAL compatible | *Audio: OpenAL compatible | ||
{{Note|Mac version are no longer supported after macOS Catalina (10.15), due to this game only have 32-bit binaries. <!-- Valve later removed macOS binaries in June 12, 2024. --><br> | {{Note|Mac version are no longer supported after macOS Catalina (10.15), due to this game only have 32-bit binaries. <!-- Valve later removed macOS binaries in June 12, 2024. --><br> | ||
User can manually build Intel 64-bit/Apple Silicon version of HL2 by [https://www.applegamingwiki.com/wiki/Half-Life_2#Native following this guide]<!-- not sure if this is legal for it to be mention here as the guide rely on using the modified leaked source engine source code -->.}}<!-- the game does not have Mac system requirements on store page, so using the HL2 one instead. --> | User can manually build Intel 64-bit/Apple Silicon version of HL2 by [https://www.applegamingwiki.com/wiki/Half-Life_2#Native following this guide]<!-- not sure if this is legal for it to be mention here as the guide rely on using the modified leaked source engine source code -->.}}<!-- the game does not have Mac system requirements on store page, so using the HL2 one instead. --> | ||
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*GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000<br>OpenGL 2.1 compatible | *GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000<br>OpenGL 2.1 compatible | ||
*Audio: OpenAL compatible | *Audio: OpenAL compatible | ||
{{Note|The system requirements for {{hl2ep1|4}} on Linux are unofficial, based off Windows/Mac info, as well as other Source games that support Linux, such as Portal 2.}} | {{Note|The system requirements for {{hl2ep1|4}} on Linux are unofficial, based off Windows/Mac info, as well as other Source games that support Linux, such as Portal 2.}} | ||
<!-- Same as Mac, doesn't have system requirements on store page. --> | <!-- Same as Mac, doesn't have system requirements on store page. --> |
Revision as of 07:23, 11 September 2024
Half-Life 2: Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. It focuses on developing Alyx as a character.
Consciousness returns. Gordon and Alyx discover they've somehow escaped both the reactor explosion and the G-Man's malevolent grasp. Before they can ponder their miraculous survival, the crippled Citadel lurches back to life just long enough to initiate a self-destruct sequence. With Alyx at his side, Gordon must flee a city in chaos before the Citadel's final detonation turns City 17 into a toxic, mutant-infested crater.
Aside from the story, the game initially runs on Source 2006, which introduced new features such as HDR, Phong shading, and much more. The game was later upgraded to Source 2009, then again with Source 2013 Singleplayer.
Content
- Half-Life 2: Episode One (
episodic
) - Half-Life 2 maps (
hl2
) - Source shared (
hl2
) - Source 2013 Singleplayer engine branch
Chapters
Toggle chapters ![]() |
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![]() Undue Alarm ep1_citadel_00 |
![]() Direct Intervention ep1_citadel_03 |
![]() Lowlife ep1_c17_00 |
![]() Urban Flight ep1_c17_01 |
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![]() Exit 17 ep1_c17_05 |
Gallery
System Requirements
Windows (Old Engine/original requirement):
- OS: Windows 98 / ME, 2000, XP or later
- CPU: 1.2 GHz (Pentium 4 or Athlon 2800+ processor)
- RAM: 256 MB
- Disk space: 4.5 GB
- Direct3D 9.0 compatible video card (with atleast DirectX 7.0 compatibility level or higher)
Some features such as HDR and color correction requires DirectX 9.0 or higher graphics card
Windows (New Engine):
- OS: Windows Vista, 7 or later
- CPU: 1.7 GHz and/or Dual-core
- RAM: 1 GB
- Disk space: 6.5 GB (15GB+ recommended)
- Direct3D 9.0 compatible video card (with atleast DirectX 8.1 compatibility level or higher)
Some features such as HDR and color correction requires DirectX 9.0 or higher graphics card

User using these OS can downgrade to previous version of the game by using the previous beta branch (dated from Sep 2019). But please note that this older branch does not include all the bug fixes that were introduced with Steam Deck update.

OS X:
- OS: OS X 10.5.8, 10.6.3 (up to 10.14.6)
- CPU: 2.0 GHz and/or Dual-core
- RAM: 1 GB
- Storage: 6.5 GB (15GB+ recommended)
- GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000
OpenGL 2.1 compatible - Audio: OpenAL compatible

User can manually build Intel 64-bit/Apple Silicon version of HL2 by following this guide.
Linux:
- OS: Ubuntu 12.04, SteamOS 1.0 or later
Other Linux distros supported. - CPU: 2.0 GHz and/or Dual-core
- RAM: 1 GB
- Storage: 6.5 GB (15GB+ recommended)
- GPU: NVIDIA GeForce 8xxx series, ATI Radeon X1600, Intel HD Graphics 3000
OpenGL 2.1 compatible - Audio: OpenAL compatible


Limitations/Bugs
- For the list of Half-Life 2: Episode One bugs, see this GitHub page.
External links
Half-Life 2: Episode One on Combine OverWiki
Half-Life 2: Episode One on Wikipedia
GoldSrc
Half-Life (also on
PS2) •
Half-Life: Further Data •
Half-Life: Uplink •
Half-Life: Opposing Force •
Half-Life: Blue Shift •
Half-Life: Decay (only in
PS2) •
Deathmatch Classic
Source
Source 2
Related