For a limited time only, Empire Earth: Gold Edition is available for free on GoG.com until the late hours of December 14th. You can get it by going here – you’ll need to be a member (it costs nothing to sign up, but why aren’t you a member anyway??) to get it but other than that, just follow the instructions, it’s rather easy. I never got the opportunity to buy this RTS classic way back when it was released in 2001 but I did get in a few games with my friend’s copy (including some awesome networked multiplayer games). I remember it being quite fun, so if you’re a fan of RTS games (or just looking for something new), I recommend giving it a shot.
Good Old Games is also having a massive holiday sale on many of their classics.