The Hunt Begins!

Alrighty ladies and gents. Let's get down to this. I've been gathering information on this amino for half an hour now, and it seems we've already made good progress. Seriously, y'all are so smart. Thanks to everyone who has shared what they found. Here is a list of everything we know so far:

Please tell me if I forgot anything.

Also, maybe we should start a hashtag on twitter for us to find clues more easily?

UPDATE 1

UPDATE 2

Twitter @luca_18080 found more source code segments.

Not sure if this is relevant. I'm curious about this last one, though. If we try to link it to previous info, it may imply that on September 29th, 2018 at 00:00:01 PST, a document will be loaded to the page.

UPDATE 3

Thanks to Agatha McCactus for providing these pictures.

Sorry if I don't know who to credit. I gather information from so many places that I can't figure out who's the first one to come up with it.

UPDATE 4

Also, there are news about the spectrogram. Here's a link to a tweet that shows it:

youareprepared spectrogram

You can find information here:

Reddit:

https://www.reddit.com/r/GameTheorists/comments/9gdkkm/arg_mega_thread/

Thanks to BessGT for giving the link.

Twitter:

With the #MerchMystery

#GTMerchMystery

#GTLive

Discord:

#arg

#ARG