Half-Life Alpha

{{DISPLAYTITLE''Half-Life'' Alpha}}

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{{Game Infobox
|image=
|name=''Half-Life'' Alpha
|hidei=
|developer=Valve Corporation
|date=January 8, 2013http//www.reddit.com/r/gaming/comments/1665n3 Finally got a copy of that ''Half-Life'' Alpha disk up. See inside for link to files on Reddit (January 8, 2013)
|genre=WikipediaFirst-person shooter|First-person shooter
|mode=
*WikipediaSingle-player video game|Single-player
*WikipediaMultiplayer game|Multiplayer
|platform=WikipediaMicrosoft Windows|Windows
|hidep=
|hideu=
|rating=
|distribution=Valve Corporation
|system=
|input=WikipediaKeyboard (computing)|Keyboard and WikipediaMouse (computing)|mouse
|engine=GoldSrc
|series=''Half-Life and Portal universe|Half-Life''
|designer=
|writer=
|composer=
|previous=
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}}

'''''Half-Life'' version 0.52''', simply referred to as the '''''Half-Life'' Alpha''' in its documents, is a leaked build of ''Half-Life'' dated September 8, 1997. Originally intended for game publications, the build was released to the public in early 2013.

==Overview==
On December 31, 2012, a WikipediaReddit|Reddit user, jackaljayzer, showed a photo of the CD-ROM of an alpha build of ''Half-Life'', version v0.52, dated September 8, 1997, intended at the time for game journalists. On January 8, 2013, the contents of the disc were released. It contains an early and simplified build of the game consisting of six chapters, a technology demonstration spanning across three maps, and one multiplayer map, an early iteration of Stalkyard.

The CD-ROM image also contains an early 11-track version of the Half-Life soundtrack|soundtrack, including different versions of "Diabolical Adrenaline Guitar" and "Hurricane Strings".

==Playable chapters==
*''The Portal Device''
*''Sector D Center|The Office Warrens''
*''The Security Complex''
*''Alien Research Lab''
*''Communications Center''
*''Reactor Lab''

==Notable characters==
*Ivan the Space Biker
*Human Sergeant
*Panther Eye

==Technology demos ==
*Polyrobo
*Probe Droid

==Behind the scenes==
There is a glowing texture system used for animated surfaces, similar to the one used in ''Half-Life 2''. These textures glow in the dark, and does not require another form of light to be lit up. They only work in the software mode. It is believed that this is done by use of an alpha map as a second layer. Furthermore, some textures in the final game appear to carry the extra data used for this technology. It is not possible to create a glowing texture using the tools provided in the Half-Life SDK|SDK. The glowing textures don't work when the texture files are edited in any way.

==Gallery==

FileAlpha disc.jpg|Photo of the disc.
FileAlpha c1a1 01.jpg|The Portal Device.
FileAlpha c1a2 01.jpg|The Office Warrens.
FileAlpha c1a3 04.jpg|The Security Complex.
FileC3a1 dome.jpg|Communications Center.
FileScientist glasses.png|Scientist model.
FileBarney alpha.png|Security Guard model.


==References==
{{Imagecat|Half-Life Alpha screenshots}}
{{Reflist}}
{{Games}}

CategoryPre-release material
CategoryPre-release builds
CategoryGames
CategoryHalf-Life
CategoryNon-canon games