1.2 GHz Processor, 256MB RAM, DirectX 7 level graphics card, Windows 2000/XP/ME/98, Mouse, Keyboard, Internet Connection
2.4 GHz Processor, 512MB RAM, DirectX 9 level graphics card, Windows 2000/XP, Mouse, Keyboard, Internet Connection
Steam Subscriber agreement
When installing Day of Defeat: Source, you will be required to accept the terms of the Steam Subscriber Agreement as detailed here.
Technical Support Contact Info
Valve Customer Service
PO Box 1688
Bellevue, WA 98009