It's seems that Tenebrae 2.0 Alpha was leaked in Dec 03 but we seem to have missed the Leak but better late than never! Think of the release as a early preview.

Read More The download is alpha code and level design. Nothing is finished and many 'things' are missing. It may not even run on some systems, however some people may be interested in checking out the current state of the project.

Download Tenebrae 2.0 Alpha