Product keys are one-time use and become permanently tied to the first Steam account that activates them. A used CD is worthless without the key.
Websites claiming to offer free, "high-quality" activation keys or license generators for specific older builds are almost exclusively malicious. Product keys are one-time use and become permanently
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However, searching for terms like on Google can expose your computer to severe security risks. This article explains the dangers of third-party key generators, why they do not work for modern versions of the game, and how you can get a legitimate copy safely and affordably. The Reality Behind "High-Quality Activation Key" Searches and recommended path: However