What are the Half Life 2 system requirements

VALVe has implemented a scaling system that should allow the game to run on some very modest PC configurations. The following is about as low as you should go:

700mhz Processor

128 mb of RAM

64 mb Video Card

Official Half-Life 2 Box minimum specs:

Processor: 1.2 GHz

ProcessorOS: Windows, 2000/XP/Me/98

Graphic card: DirectX 7 level graphics card

Hard Drive: 4.5 GB

Memory: 256 MB RAM

Other: Internet Connection, DVD-ROM Drive