Blending single elimination, team-based gameplay with the notion of
an economy to produce an online action experience of incredible
depth and realism, Counter-Strike is the most played multi-player
online action game in the world. With Counter-Strike: Source, the
now legendary game has been given a complete overhaul, with graphic
enhancements such as higher polygon models, shadows and reflective
water to add dimension to the new characters, items, and
environments. CS: Source also contains all new maps.
In addition to the award-winning Counter-Strike gameplay, this game
also includes Half-Life 2: Deathmatch - featuring fast action
gameplay in physically simulated environments - and Day of Defeat:
Source, Valve's World War II online action thriller set in the
European theater of operations.
* The #1 multi-player online action game in the world offers the largest
community of players.
* Amazing value also featuring: Half-Life 2: Deathmatch and Day of Defeat:
Source.
* Includes official Counter-Strike Bot for offline skirmish play.
* Powered by Source, Valve s new engine, featuring amazing graphics and
special effects.

-- SPECIFITCATIONs --------------------------------------
ESRB Rating : M for Mature
Genre/Category: Shooter
System : PC
Requirements : Minimum: 1.2 GHz Processor
256MB RAM
DirectX 7 level graphics card
Windows 2000/XP/ME/98
Mouse, Keyboard, Internet Connection
Preferred:
2.4 GHz Processor
512MB RAM
DirectX 9 level graphics card
Windows 2000/XP
Mouse, Keyboard, Internet Connection
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Multi-player

System Requirements: 

Processor:

1.2 GHz Processor

2.4 GHz Processor (recommended)

Operating Systems:

Windows XP (recommended)

Windows 2000 (recommended)

Windows ME

Windows 98

Memory:

256MB RAM

512MB RAM (recommended)

Others:

DirectX 7 level graphics card

DirectX 9 level graphics card (recommended)

Mouse, Keyboard and Internet Connection