How to convert Valve SMD to MD3 or DPM using DPM Wizzard
List of all Quake DarkPlaces console variables (CVARs) and commands (CMDs) with description.
Crafty is a 3D object, material, model and file browsing utility targeted towards Half-Life modders.
This is the MDL Decompiler used to decompile all half life 1 (goldsource) models, use this program along with half life model viewer.
Working decompiler for GoldSrc games and Quake.
A nice, custom, GUI that allows extracting Garry's Mod addon files (.GMA).
GCFScape is a small tool that can open and extract from BSP, WAD, PAK, GCF, VPK, NCP, XZP files.
Very powerful tool that can download items from Steam workshop, unpack/pack VPK and GMA, view models, decompile and compile models.