: Some versions included a separate white leaflet with the registration code. š ļø Activation and Use
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How you use the key depends on whether you are using the original retail installer or a modern platform: : Some versions included a separate white leaflet
Many players want to relive the LAN party atmosphere of 2001. How you use the key depends on whether
It is important to note that the WON servers, which originally validated these keys for online play, were shut down by Valve in 2004. This moved the entire community to the Steam platform. If you have a physical CS 1.1 or Half-Life CD key today, you can often "redeem" it on Steam.
Used for later "Game of the Year" editions and the Counter-Strike Retail stand-alone box. The Transition to Steam