Team Fortress 2

Team Fortress 2

Have you got what it takes?
Create and submit new items (such as hats, weapons, badges, boots, and more) for consideration to be incorporated into the actual game. Click here to learn more.
Need help with the Blender Source Tools plugin
I've downloaded the Blender Source Tools from the github page, but whenever i add it into blender addons, it doesn't show up as a checkable addon.
What am I doing wrong?