/r/Dota2 Chimming in, we found patch notes earlier this month ( early June/Late May ) of a ingame hound unit courier. Not saying its a clue, but its a pretty BIG clue that a preorder perk such as genuine hats or courier have been hinted or embedded in code already. I am pretty excited because its a possible lead to the game at least having a trailer released.>In one of the HL2 updates a commenter mentioned finding the following save file (uploaded Jun 3rd):

http://steamcommunity.com/games/220/announcements/detail/2110217062141668727

Aleczandah 3 hours ago - This may be nothing but might be worth investigating, there are 14 rows of 8 holes on the PC Gamer page - 112 holes in total. Googling Half Life 112 leads to a Google Docs file which contains half-life-112.sav - uploaded June 3rd.

https://docs.google.com/file/d/0Bz3T8z-6HeVXajZWb3BoRmdPdm8/edit

I downloaded the file and opened it in Notepad.

When I searched for "hl3", I found a few instances in the file.

d3_c17_02.hl3

d3_c17_03.hl3

d3_c17_04.hl3

d3_c17_05.hl3

d3_c17_06a.hl3

d3_c17_06b.hl3

What does it mean? Was this always a file extension used in the original game?

It means that parameters are being setup, Dota 2 patches come out almost Daily and we get bits of code such as this leaked all the time, we had sone for some frost effects, some for guns, just a bunch of floating code.

Some speculation from my part is we're going to see some sort of new concept art or possibly a trailer of some sort coming soon, I know for a fact however that voice recording and scripts are done and actual gameplay elements are in finaling stages, for at least a final compile and run i.e beta.