- Home: https://t-3.sourceforge.net/, https://sourceforge.net/projects/t-3/
- Inspiration: Blockout, Tetris
- State: beta, inactive since 2005
- Download: https://sourceforge.net/projects/t-3/files/
- Platform: Windows, Linux
- Keyword: puzzle, 3D
- Code repository: https://gitlab.com/osgames/t-3.git (conversion of cvs, @created 2019, @stars 1, @forks 0), http://t-3.cvs.sourceforge.net (cvs)
- Code language: C++
- Code license: GPL-2.0
- Developer: Derek Hausauer, slightlytwisted