Starting with version 2.1, the Tactile12000 is an open source project. With the source code and the development software, you can add features, fix bugs, modify the behavior and change the graphics. Tactile12000 development requires Macromedia Director. For some features, a C++ development environment (Microsoft Visual C++ or Metrowerks CodeWarrior) is also required.

The source code is hosted on SourceForge and released under the GNU Public License. SourceForge provides a central place for developer information about the project, including mailing lists, a bug database and source control. If you would like to contribute to the development of the software, you can apply to be member of the development group for it. You do not have to be an official developer to download and use the source code, though you must still adhere to the Gnu Public License.

The SDK documentation is kept up to date at http://www.tactile12000.com/develop/sdk.html.