Yes. PC. Definately
Hell, even if you get just TF2, it is worth the $20. That game has had so much add on content by ValvE, that if it were any other developer, it would be re-released as a GOTY edition for $50. And since all of that is free from ValvE...
Get Orange Box if you care AT ALL about the other games though. HL2, Ep1, Ep2, and Portal are all great (I don't think that had to be said anyways), and if you don't have any of them and have ANY interest in playing them - get the Orange Box.
Either way, its a must get.
Hell, even if you get just TF2, it is worth the $20. That game has had so much add on content by ValvE, that if it were any other developer, it would be re-released as a GOTY edition for $50. And since all of that is free from ValvE...
Get Orange Box if you care AT ALL about the other games though. HL2, Ep1, Ep2, and Portal are all great (I don't think that had to be said anyways), and if you don't have any of them and have ANY interest in playing them - get the Orange Box.
Either way, its a must get.