Tesseract engine

Have anybody heard of the Tesseract engine? If so, could you give me explaination what kind of engine it is, and if it is interesting to use?

Polycount discussion with Tesseract engine in use: [http://www.polycount.com/forum/showthread.php?p=1843962#post1843962

<a href=“http://www.polycount.com/forum/showthread.php?p=1843962#post1843962” target="_blank">
https://youtu.be/FUYUNgr22m8
](http://www.polycount.com/forum/showthread.php?p=1843962#post1843962)

That looks alot like the cube 2 engine: http://sauerbraten.org/

Except maybe a custom build of it. Actually I just noticed in the title that that’s exactly what it is, a mod for a game built on cube 2 engine.