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The Torque 3D game engine is now free and open-source under the MIT license.
Posted by Warner on Oct 5th, 2012
GarageGames aims to expand on their company vision and "focus on innovative uses of game technology." As part of a step of taking a new innovative direction, GarageGames has decided to release Torque 3D as an open-source engine under the MIT license. The company is not giving up on T3D, but rather they believe this step will help T3D grow, as they plan to continually work on T3D. GarageGames does not plan to release any other of their engines as open-source.
Torque 3D is available at GitHub, GarageGames decided to use GitHub because they believe that "it allows for great community interaction, encourages the forking of code bases, and easy merging of changes." T3D developers on GitHub may recommend changes and create a pull request, where someone with Write Access can then amend those changes to the engine.
The version of the engine being released is Torque 3D 1.2, however, some art assets were removed to minimize the download size. You may download items such as the FPS template separately.
You can read the announcement article about this at garagegames.com.