http://www.descent3fischlein.de/list/
What other first-person shooter has six degrees of freedom? What other game has the Mass driver?
I'm not associated with this petition, just passing it on, but do sign if you'd like to see the Descent series continue. You never know, it's worth a shot if they ever consider doing so.
I personally think a Descent type game would REALLY take off if they simply made the default controls be mouselook instead of joystick. Then your steering is familiar without having to change the defaults. With mouselook turned on in Descent 3, FPS players can jump right in.
Who could go back to walking after you've flown? Best multiplayer around!