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.
GCFScape is a file explorer and extractor that supports various archive formats, most notably Steam's GCF files. It can browse, find, preview and extract...
A tech demo showcasing new tech worked with in portal, Gravity!