Looks pretty nice, this
Darkplaces based game, doesn't it? And you can download a
RetroBlazer alpha demo now... take it with a grain of salt though as my intuition tells me that this is probably planned to be a commercial release based on a FOSS engine like
SteelStorm. While this is of course not bad in general (in fact personally I think there should be more FOSS based commercial games), I always get a lot of flak in the comments for posting about games with un-Free media or such ;)
On a side-note however (after playing the demo for a short while) I have to say that it is a bit too retro for me (no proper mouse aiming? is it like 1996?). I was hoping for more of a hybrid than a strait Doom reimplementation ;)