If you haven't heard, there's been some serious sleuthing work being done. Check this link to get somewhat caught up (as of six hours ago):
https://www.reddit.com/r/steamsaledetectives/comments/3yxt96/can_we_get_a_quick_recap_from_the_heroes_that/cyhjx44 Since this, the most recent development was the discovery of the badge. A new WAV file was found, and its spectrogram looked like this:
http://i.imgur.com/i27XiXi.jpgHere, you see horizontal lines, which don't match up with the rest. If you read them like symbols, you get a code, and inputting that code into a store page gains you the red herring badge.
Go here: http://store.steampowered.com/app/253750
In the search bar, type "SEARCH". In the window that pops up, type the code, which was 1v7531.
Press enter.
Boom.Something else happened. There is a website xccr.com which, back in 2006, was suspected to have a link to half life 2 because of a billboard:
http://i.imgur.com/kFks27v.jpg as well as the fact that it was made 2 days after half life 2 was released.
Well, after nearly 10 years, the website has gone down. Coincidence? I don't know, but with everything happening, my hopes are growing.
Oh yeah, that WAV I talked about earlier? It was found by using pictures from the comic, which contained symbols, which corresponded to a game:
https://www.reddit.com/r/steamsaledetectives/comments/3yyh8t/new_wav_found/cyhq2ryThose letters, LOYAGORKU, happen to be an anagram for Yugo Koral, which is what one of the main junk cars featured in HL2 was modeled after. (See the reply to the comment I linked)
This shit's crazy, and I encourage you to follow the subreddit for a while. Almost all of this happened today.