Non-TF2 related: Earth 2160 for free (PC)

Once again, Dealnews.com has the scoop of a freebie for PC gamers:

"Today only until 7 pm ET, Green Man Gaming offers downloads of Earth 2160 for Windows for free. That's the best deal we've ever seen for this strategy game. (It's also a current price low by $6.)

Of note, this game requires a Capsule client account to play."