You control a ship (or fleet if you are that brave). in three dimenstions. shooting missiles, turning dodging... Your dogfighting with giant space battleships and the game mechanics take physics into account. I have played it a few times and only have a vague idea on how to master the hole thing and at the same time it is very intuitive. Mixes pen and paper kind of math with miniatures. Involved but rewarding. Based in the "honor Harrington" universe. I i find a good deal on the boxed set and no one else on the forums plays it, i will try to do a demo game.
If anybody else has played this and can explain it better, please spread the enlightenment.