??????????2?? ( Team Fortress 2 ) ?????????????????????? Steam ????????ν???????????????????????????????硢???衢???????????????????????
?????????2?????19.9?????????Valve???????????????????????2?????????????????????????2????????Steam?????????????????????10??λ????????1λ??????????????????????????????????????????α?????Steam?????????????????
????????????????????2????ν??????????????????????????Steam?????????????? ???????????????????????????????2????????????????????4“??”?????????????????????2??????????????????????????????顣
??????????????????2?????????????????????????????????????ν??????????????????????????????????????????????????????????????????????????????塣
????????Valve???????????????????
?????????2?????????Robin Walker???“??????????????????????????????????????????????飬??????????????2??????????????????????
?????????2??????????
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?????????2????Team Fortress 2?????TF2??????Valve????????????????????????FPS?????????Valve???????????????·??????Team Fortress Classic???????????????????2?? ??? CS ??????????????????????????????????????????????????????????????????????? CS ????????TF2 ???и?????????Ц??????????????????????????????????????????
????????????????????????????????????????40407???????40407????????
