File used by the Unreal Engine, a program that allows to create multi-player first person shooter games; contains a text list of Unreal map objects, also known as map actors; used to describe different objects and place them in an Unreal map.
3D document created by Swift 3D, a 3D modeling and animation application; saves the 3D model, material settings (textures), camera positions, lighting information, environment graphics, and other 3D information; also saves the animation timeline. Swift 3D documents are used for creating Adobe Flash and Microsoft Expression Blend animations. T3D files often are created from a base .3DS model.
File used by the TicTacTi Ads Engine (tttEngine), a program used for overlaying advertisements in videos and games; contains XML-formatted text that describes the display and layout of advertisements. T3D files are used within videos and games to tactically place advertisements.
The t3d file extension is associated with the computer game Fifa 2000.