The Hidden is a mod for the Half-Life 2 Source. It's essentially a deadly game of hide and seek. The seeker is mostly invisible and the hiders are trying to kill him. The seeker (The Hidden) is a genetic experiment that is agile and fast like no other. The point is to kill him before the time runs out, or the number of people runs out. It's an interesting game and is very funny (sometimes scary).
It is similar to Obscurity Mod in CoD4, but if you already have a HL2 Source game downloaded, then it's free to you. The download files can be found on this website
http://www.hidden-source.com/
I am petitioning, if we get enough interest, for a Hidden Server for the Krew. It would be a good change for us and we could branch out to other types of players.
Here are some videos of gameplay and other stuff:
The game goes great with TeamSpeak and would be a great addition to our repertoire.