Half-Life 2 has sold over 4 million copies worldwide, and earned over 35 Game of the Year Awards. Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. Also features two multiplayer games. Half-Life 2 not required.
Minimum: 1.7 GHz Processor, 512MB RAM, DirectXﾮ 8.1 level Graphics Card (Requires support for SSE), Windowsﾮ 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection
Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectXﾮ 9 level Graphics Card, Windowsﾮ 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection