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Half-Life 2: Episode One

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Title Screen

Half-Life 2: Episode One

Developer: Valve
Publishers: Valve, CyberFront (JP)
Platforms: Windows, Mac OS X, Linux
Released in JP: June 2, 2006
Released in US: June 1, 2006, May 26, 2010 (Mac OS X), June 27, 2013 (Linux)
Released in EU: June 2, 2006, May 26, 2010 (Mac OS X)

ModelsIcon.png This game has unused models.
ItemsIcon.png This game has unused items.
SoundIcon.png This game has unused sounds.

This article is a work in progress.
...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes.
Notes: Get the pre-loaded "outliers" and the unused dialogue from Alyx and G-Man.

Half-Life 2: Episode One is follow up to the original Half-Life 2, featuring pretty-looking HDR effects, more cooperation with Alyx, more physics puzzles and red skies.

It also adds some Hunters. Woo.

Vortex Hopwire Grenade

This "weapon", also nicknamed the Black Hole Grenade, can be spawned through the console. It is very powerful, drawing everything nearby into it before collapsing and killing enemies instantly. However, it is glitchy and has an unfinished model; it re-uses the Rollermine model. According to Episode Two's commentary track, this would later become the Magnusson Device.

If used too close to Alyx, it can kill her and spawn endless ragdoll copies, and often crashes the game to the desktop.

Unused Models

HL2-EP1 pumpkin01 explosive.png

models/props_outland/pumpkin01_explosive.mdl contains an untextured pumpkin from an early build of Episode Two.

Unused G-Man Dialogue

There are various soundscripts located in Half-Life 2: Episode One that are pre-loaded, but whose respective sound files were omitted in versions after the preload release. The G-Man is one example of this. Here are various lines from the intro, and his only appearance in the game since the Vortigaunts hinder him from getting to talk to Gordon. Seemingly, he was to speak with Gordon in early revisions before being cut off, whereas in the final he is instead stopped from even initiating conversation.

Oh no, Freeman, come back. Come back here, now.

Get back here.


Oh! Not for long.

Not this time.


Well...well shit.

Unused Alyx Dialogue

unlike the fucking soldiers who volunteer for what they get.
Alyx has one of several unused pieces of dialogue involving the Stalker train that she and Gordon ride to get out of the Citadel, where she expressed fear for the Stalkers. As Bill Fletcher mentions in the developer commentary, her reactions to the Stalkers went through a number of iterations. In very early versions, Alyx was frightened by the Stalkers. This didn't work since it clashed with her earlier reactions to Stalkers in the Citadel, who to her knowledge were simply workers. In the second revision, Alyx expressed anger at the Stalkers' predicament. Early versions of this didn't work either since Alyx's transition from generally upbeat to blind rage was too sudden. Ultimately, through "rewrites and rigorous testing", the team found the right tone for the scene - a simmering anger level that was more in tune with the situation.

In addition to this line also being removed in releases after the preload version, it is located among the closed captions, its string is blanked out however.

Unused Barney Calhoun Voice Clips

The best thing you can do is run defense.

Ammo's in short supply; a lot of the citizens are unarmed at this point.

Barney was originally meant to say these lines when Alyx and Gordon meet up with him at a Resistance safehouse in the Urban Flight chapter.

Okay then. You take care of yourselves. I'll see you out there.

Barney was meant to say this when Alyx and Gordon are about to leave the Resistance safehouse.

Dr. K's in fine fettle, isn't he?

Barney was supposed to comment on either Alyx or Gordon about Isaac Kleiner's condition either during the Urban Flight or Exit 17 chapters.

Oh, you're kidding me. A Strider? In here?

Okay, where the hell did that strider come from? I thought they'd all hightailed it out of town by now.

Hey, see if you can bring that strider to its knees, buddy.

Good job knee-capping that strider!

Meant to be used for a Combine Strider battle in the first section of the Exit 17 chapter.

Are you crazy? Er, well, don't answer that.

Barney was supposed to say this if Gordon was to interact with him when under fire with a tough enemy entity during the first section of the Exit 17 chapter.

A gunship! Well this is one hell of a wrinkle.

That's one less gunship in the world!

Lines for a Combine Gunship battle in the Exit 17 chapter.

Okay, we've gotta take out that armored personnel carrier or no one will be able to get through.

Barney was supposed to say this when encountering a Combine A.P.C. during the Exit 17 chapter.

Oh hell, it looks like that soldier found himself a rocket launcher.

Barney was supposed to say this when spotting an Overwatch Soldier equipping a Rocket Propelled Grenade.

Oh well...I don't have a trophy room anyway.

Barney was to say this if Gordon managed to defeat a tough hostile entity during the Exit 17 chapter.

Good. Now, to catch up on those beating quotas.