Both the first and second episodes are available to you.
Half-Life 2 is one of the legends of the gaming industry, so almost everyone had the opportunity to try it before. If you missed it, now is your chance to play for free. For its twentieth anniversary, Valve decided to give players Episode One and Two without paying a single crown. And to top it all off, there is also developer commentary telling you how certain aspects of the game were developed.
Among other things, various errors and shortcomings of the original version have been fixed. In addition to the celebration elements, the developers at Orbifold Studios have also released a short documentary video showing how the full ray tracing was created. According to them, the journey was not easy, but in the end it was crowned with success. You can add Half-Life 2 to your account for free until November 18th on PC.
Source :Indian TV