"The first anyone had seen publicly of Portal 2 was relayed over this modem from 1987

[Administrator]

In March 2010, Valve updated Portal with a mysterious patch that set fans on a trail of code-cracking and puzzle solving that ultimately led to the announcement of Portal 2.
The last layer of a convoluted ARG conundrum gave people a landline number in Washington near Valve HQ.
That phone number was Adam Foster's, he told me recently, and it was hooked up to an old BBS-capable PC with a modem from 1987, set up in his kitchen (information super sleuths have dug up before).
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