http://store.steampowered.com/give/

SteamSUGEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Portalが6個ﾊﾟｯｸで15㌦！！！！！！
ｹﾞｰﾑのﾈｯﾄ販売でこういうのは新鮮だな(;´Д`)