Half Life 2: 20th Anniversary - Part One

A gift from God and Gaben came that made this game free until November 18, which allowed me to get my copy of this iconic game.
Now, I didn't watch full gameplay of this, but I am aware of the plot and its mechanics, so forgive me if I seem like I'm going through these with ample ease and not like a first time player. (This really is my first time playing Half Life 2, save for my experience with Sven Co-Op and Transmissions: Element 120)
It's in Steam still, maybe it has a discount, but with the work and passion put into this game, this is worth more than some modern COD addition or a usual single player first person shooter campaign.
The price is humble, and the experience is near impossible to compare to others. (Other than community campaigns in Workshop and even its predecessor game "Half Life")