Interesting Gameplay Ideas from Valve (Makers of Halflife 2)
July 19, 2006
In this new trailer from Valve, they hint at a new weapon in Halflife 2:Episode 2 called Portal. You have to see it to believe it!
This work by Shawn Wildermuth is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License . Based on a work at wildermuth.com.