Yes, if you are on a PC.
No.
Team Fortress 2 is Free-To-Play on PC, so you do not need any CD. You need the software Steam to install the game, though.
all the sound files for TF2 are stored in the "team fortress 2 content.gcf" file located in your steam/steamapps directory. to extract them you need to install gcfscape
no you must buy it in the orange box. or you can buy it on the PC sepratly you need to have steam though.
Usually when you 1st download TF2(if you havent already) you are required to download steam. once you download steam and make a account. open up TF2 and you should be ready. Also.....you need internet. although you could use bots which dont move or shoot. The game can only really be played online. If your using a 360 or ps3 you need to have a xbox live account. and your ps3 online
Do you have a filter applied? Check on the Steam Forums and you may need to delete and reload one of you dll's
you need to create an account on the Source OP website, then enter your steam id and claim your backpack. this will only work if your backpack is visible within steam
you need to create an account on the Source OP website, then enter your steam id and claim your backpack. this will only work if your backpack is visible within steam
This is false Steam has free games that you can download at anytime the only downside to not buying a game with steam is that you cant send friend requests, but you can receive them.
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If you downloaded the game, no. If you purchased the game and it came with a disc, maybe. I wouldn't think that the disc is required to play, as the game associates itself with your steam account for verification.
You can try it with Crossover, or virtualization but that will only run the steam app. To actually game you are going to need to dual boot with boot camp into an XP, Vista, or Windows 7 partition.I boot into win7 for my team fortress 2 fix.