http://www.pcgamer.com/company-of-heroes-2-is-free-on-the-humble-store/

Hey, do you want Company of Heroes 2 for free? Yeah you do. So what you want to do is head over to the Humble Store sometime over the next couple of days, and click the button that says "Free!" 

Now, having dispensed with the technicalities, let's have a look at the game. Company of Heroes 2 is a World War 2 RTS developed by Relic and released in 2013. Despite its age, it still has a substantial following: SteamCharts says it had a peak concurrent player count of more than 9100 today, a little under half its all-time peak of 20,747.