Valve isn’t one to shy away from the modding community. To kick it up a notch, they’ve updated the Source Engine SDK with the original source files for ten maps from Team Fortress 2. You can play around with the original assets from Lumberyard, Ravine, Badlands, Dustbowl, Granary, Gravelpit, 2Fort, Badwater, Goldrush, and Hydro.

This is great for the map creation and tweaking community on the PC. You now have the tools to see exactly what Valve did when creating the maps. Get downloading and make some more awesome shit.