You use a coding called Torque script, to make code files to place on the client, or the server.
A recommended coding program is Notepad.
To package an add-on:
client.cs (optional, unless you don't have server.cs)
This file is automaticly executed when you start blockland.
server.cs (optional, unless you don't have client.cs)
This file is executed when you start a server with the package selected in the add-ons list.
Place server.cs and/or client.cs into a compressed folder (.zip) and place the .zip directly to the add-ons folder.
For shapes, there are many programs to use. Most people like to use Milkshape, but it costs money.
Blender is free, but difficult to learn.
You put these shapes into the .zip aswell, along with textures you use.
