Play the Half-Life Games For Free

I haven't been doing much gaming the last few years, but when I was, I loved Half-Life and it's sequel Half-Life 2. I haven't finished either game though, so I was excited to find out that you can play the whole Half-Life series for free until mid-March. It's a promotion for the next Half-Life game, Half-Life: Alyx, which will be released in VR format. More details in the linked article.