This is the HL2-Ep1 Mods category

Half-Life 2: Episode One mods. These are generally installed by copying a folder to your SourceMods folder, within your Steam Installation. These mods can not use MapTap.

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Minerva

for Half-Life 2: Episode One

Pervasive.

Literary.

Brutal.

Experimental.

MINERVA, by Adam Foster, takes you to a remote island under the control of Combine forces. Something is going on here. Your goal is to uncover what that is and destroy it. Oh, yes – and try to survive.

This is March’s Classic of the Month mod.

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2
37
24

Total Downloads: 5,03122nd March 2015
159 Comments and 64 recommendations, most say "Play It Now!"

Sebastian

for Half-Life 2: Episode One

Where would you be without Barney? That Beer Buddy just keeps coming to your rescue.

You start in a calm city square, but things turn a little more action packed within a few moments.

Listen to Barney, he knows what to do.

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1
17
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Total Downloads: 11,30127th December 2010
44 Comments and 28 recommendations, most say "Play It Now!"

Dark Factory

for Half-Life 2: Episode One

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

The Combine have taken control of a factory, just outside City 17. The resistance have too few men to effectively defend or retake the factory, so it falls to you, Gordon Freeman, to enter the factory and disable the reactor, making it useless to the Combine.

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4

Total Downloads: 1,99925th September 2010
33 Comments and 13 recommendations with no significant bias

Siren

for Half-Life 2: Episode One

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

You start in a small town and have to work your way through the tunnels.

You meet Father Grigori but are blocked from reaching him and from then on your objective is to join him.

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16
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Total Downloads: 4,66225th April 2010
56 Comments and 27 recommendations, most say "Play It Now!"

New Victim

for Half-Life 2: Episode One

Single Player First Person Shooter Maps and Mods for Half-Life 1, 2 and Episodes 1, 2 and 3

Jump into the portal and reach the 3 fighting Striders. What else can I tell you? The first and only speech is in Russian but you don’t really need to know what he says. Just run, think, shoot and kill!

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1

Total Downloads: 1,20725th January 2009
21 Comments and 7 recommendations, 1 say "Play It Later"