Nem's Tools
GCFScape
FreePowerful archive extractor for Valve packages
Windows
Crafty
FreeBrowse 3D objects, material, model and files.
Windows
VTFLib
FreeHave a library for LGPL open source programming.
WindowsMAP Viewer
FreeView .MAP files in different modes.
WindowsTerrain Generator
FreeGenerate terrain with complete 3D control.
WindowsBatch Compiler
FreeCompile all your maps easily.
Windows