"Min:
1.2 GHz Processor
256MB RAM
DirectX 7 graphics card
Windows 2000/XP/ME/98
Mouse
Keyboard
Preferred:
2.4 GHz ProcessorB 512MB RAM
DirectX 9 graphics card
Windows 2000/XP
Mouse
Keyboard"
those are the ones for counter strike source so im guessing the ones for hl2 cant be too different...