Make players WORK for their shots.

Basic tutorial that covers how to use TrenchBroom for Half-Life (Counter-Strike 1.6) mapping, initial setup and some basic features.

I define Unit as a unit of length measurement close to the inch and rounded for ease of calculation. Of course, this is true for most games, but the developer can change the proportions depending on what they are doing.

PakScape is a PAK and PK3 explorer/creator. It doubles as a ZIP explorer/creator because PK3 files are really ZIP files.

Terrain generator for GoldSrc/Source games.