Half - Life 2 : Episode One

Half-Life® 2: Episode One is the first in a series of new adventures created by Valve that extends the Half-Life® 2 single player experience. Stepping into the hazard suit of Dr. Gordon Freeman, you face the immediate repercussions of your actions in City 17 and the Citadel. Rejoin Alyx Vance and her robot, Dog, to once again aid the human resistance in their desperate battle against the totalitarian alien menace of the Combine

System Requirment-
OS: Windows 98/2000/ME/XP
1.2 GHz Processor or equivalent
RAM: 256 MB
DirectX 9c
Recommended System Requirements
OS: Windows 98/2000/ME/XP
System: 2.4 GHz Processor or equivalent
RAM: 512 MB
Other: DirectX 9 level graphics card
Pass Unclock:
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Resumable Download Links: 

Part I
size 200 MB

Part II
size 200 MB

Part III
size 200 MB

Part IV
size 200 MB