The Source SDK is an amazing software package that still bewilders me. I would like to mod my own game, but I don’t have time to do anymore than mere experiments. The other day I had some fun with zombies, enclosed spaces, and a few metro cops. Zombies always win in close quarters, this was no exception. 5 Zombies against 12 Metro cops in a small hallway left me with about 2 zombies taking down the last Metro Cop. Aside from personal fun and amusement, the Source SDK is also a gateway to new experiences and other software such as the XSI Mod Tool and Visual Studio. One of the best aspects of the Source SDK is its variability aspect of a much loved game; Half-life 2. The ability to mod the game gives the player full “writerly” control. Also I would like to say that I did not know at the time that there was a HL1 SDK, My assumptions about it not existing were wrong. Another aspect of HL2 that the Source SDK improves is the modularity aspect. Before, the different parts of the game (sounds, Textures, Models, and other things like the HUD) were all combined to make the game. Now, The Different parts to make the game are available to the player and are combined to allow the player to literally “Make” the mod.