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This is one of the game I liked the most, which I occasionally play again with episodes 1 & 2.
I loved the atmoshpere (levels design, sounds) and the scenario. Alyx was also part of my interest in this game :)
Of course the 'Source engine' has got old with the years, but still does the job for this must-play game.

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***SPOILER*** - 3D Levels - split in 3 because of the size - (Microsoft .X format) - Updated 2026, June: with Overlay Sprites and Laser Mines) :

Restriction: Overlay Sprites are draw as basic 'plane' sprites (no projection on deformed surfaces). This simplification sometimes leads to visually approximate results, but works most of the time.

Just unzip all 3 archives in the same folder :

structures textures (1/2) textures (2/2)



In order to view easily inside buildings, here's a version where I removed parts of some ceilings.
Just unzip with the same textures as above.


3D items (Microsoft .X format) :

example: combine soldier


Bitmaps (textures, ...) : split in 2 because of the size:

part 1 part 2


Valve video  (H264-encoded .AVI) :


Audio :


Episode 1

3D Levels - split in 2 because of the size :

structures textures



Version with less ceilings :


3D items (Microsoft .X format) :

example: Alyx


Bitmaps (textures, ...) :


Audio :


Links

Technical info :


            

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