With no sight of Half life 3 any time soon, valve have licensed several of the Half life universe items to a programmer who has created a mod for Half life 2. It takes place in the Nova Prospekt prison. It's soon to be released on steam.
http://prospektgame.com
I've preordered because it's such a small price.
http://prospektgame.com
I've preordered because it's such a small price.