Free Survival horror games

[Deep One]

SCP - Containment Breach
Game is still very unfinished and has lots of bugs in it, so don't panic. Just remember to read every single note you find, they are really important if you want to know how to deal with SPC's.
And if you have not read scp stuff before, take a look. Read at least 173, 106, 895, 096.

I've seen several people mention this stuff on this forum alone. I just went and checked out the site, but it made no god damn sense whatsoever. I couldn't make heads or tails of any of the links on the page, and the FAQ section assumes you are already an accepted applicant. Googling "What is SCP?" brings up very vague answers for me.

I assume that now you know what SCP is, but seriously, I googled "what is scp?" and this was the second hit. How it was so hard?