Hey, just wanted to let you people know about this secret house on surface tension. Can’t get to it with noclip as it simply doesn’t let you.
Go to this place:
Press this thing:
It will light up:
Go here:
Enter the cave:
This teleports you to the secret area:
Confirmed on all counts, here’s a closer shot of the corkboard in the shack:
Terrible penguin model + nigh-incomprehensible, very excited email = HIRED :hmph:
EDIT: Wasn’t there another guy who found it a couple days ago? IIRC everyone called BS because he had no pictures to prove it and couldn’t explain how he got there.
EDIT2: It was this guy.
Yes there was. Here is the google cached version I found when I was looking to make sure this was not already posted: https://webcache.googleusercontent.com/search?q=cache:1pWAKHCppeYJ:forums.blackmesasource.com/showthread.php%3Fp%3D497388+black+mesa+secret+surface+tension&cd=1&hl=en&ct=clnk
Fun fact: from a comment of Stormseeker on ModDB, it seems the “HIRED” letter is a internal joke form the devs to a “certain modelling applicant [they] had after the 2008 media release”. And the purple hat and Rutta Grape Soda too.
Can someone take a close-up screenshot of the email itself? I’d like to read it, but don’t have time to seek it out in-game. 
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.
