List tools that can be used to make content for T3D. forum thread

Image editing

GIMP

Object/level editing

Blender

Audio editing

Compilers and IDEs

Script editing

Scripting editors and IDEs

Torque 3D Conversation Editor by Roostertail Games

Torque3D Conversation Editor Quick-Start Guide by Roostertail Games

Torque 3D Key Map Editor by Roostertail Games