Half-Life 2: Episode One

Picking up after the events of Half-Life 2, scientist Gordon Freeman and Alyx Vance attempt to slow an unavoidable chain reaction that will destroy City 17.

Finally earned 100% completion on Half-Life 2, Episode One and Episode Two and I couldn't be more proud with myself. : r/HalfLifeLounge

Walkthrough - Half-Life 2: Episode 1 Guide - IGN

Half-Life 2: Episode One (2006)

Half Life 2, Episode 1 and Episode 2 Fan Casting on myCast

Steam Community :: Guide :: 100% Achievement Guide: Half Life 2 - Episode 1

Half-Life 2: Episode One Gets a Stunning VR Mod This March

Half-Life 2: Episode One - Wikipedia

Half-Life 2: Episode 1 - Full Walkthrough

Half-Life 2: Episode One arrives exclusively on Nvidia Shield Tablet

Half Life 2 - Episode One OST : Kelly Bailey : Free Download, Borrow, and Streaming : Internet Archive

Half-Life 2: Episode One - Apps on Google Play

Half-Life 2: Episode One - Metacritic

Half Life 2 Episode 1 PC Game w/ Key Source Single Player Deathmatch Aftermath