The Source engine is a 3D game engine developed by Valve Corporation. Its unique features include a large degree of modularity and flexibility, an artist-driven, shader-based renderer, accurate lip sync and facial expression technology, and a powerful, efficient and completely network-enabled physics system.
The first beta version of REALITY DECAY is coming today! (well tonight actually.) In other words it will be at roughly midday for you Americans!
FINALLY, after 3 more days of waiting the public can finally get to grips with the concept of portals in a more "hazardous enviroment", REALITY DECAY...