Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
原投稿署名:CSDZhenli
Valve为《传送门2》制作的宣传类ARG,以一个神秘的更新公告和26个收音机声音起手,让玩家逐渐发现传送门的秘密