Well, well, who does not want any freebie here? Haha. You can now download Team Fortress 2 on Steam for free. I've found an archived thread for Team Fortress 2 and it seems that there are players here already. Actually I haven't tried playing it but from the looks of it, this seems to be a shooting game just like Counter Strike. I think you still have to create a Steam account to download it. This game is native to the Mac so there's no need for Bootcamp here.
Here are some links to get you started:Can't wait to download it this weekend. For those who will be downloading it already, please let us know your thoughts about it.About the Game
“The most fun you can have online” - PC Gamer
Is now FREE!
There’s no catch! Play as much as you want, as long as you like!
The world’s #1 war-themed hat simulator!
One of the most popular online action games of all time, Team Fortress 2 delivers constant free updates—new game modes, maps, equipment and, most importantly, hats. Nine distinct classes provide a broad range of tactical abilities and personalities, and lend themselves to a variety of player skills.
New to TF? Don’t sweat it!
No matter what your style and experience, we’ve got a character for you. Detailed training and offline practice modes will help you hone your skills before jumping into one of TF2’s many game modes, including Capture the Flag, Control Point, Payload, Arena, King of the Hill and more.
Make a character your own!
There are hundreds of weapons, hats and more to collect, craft, buy and trade. Tweak your favorite class to suit your gameplay style and personal taste. You don’t need to pay to win—virtually all of the items in the Mann Co. Store can also be found in-game.
-- from Team Fortress 2 on Steam