Yeah, its very true, we are usually lacking in members.
I think that the only option that even has a shot is another RP like Deathnote. A simple RP based in an already popular and established setting.
Problem with doing an RP based on an existing franchise is the possibility of interested people not knowing much or anything about it but still wanting to join.
Although, I agree, something popular and established would be the best way to get interest.
Making a sci-fi project that revolves around a small crew's misadventures upon a ship, occasionally stopping on stations and planets in order to progress the story? That's more manageable, and if every scene within the RP contributes to the overall storyline, then it's more likely to reach its end scene and have a satisfying conclusion.
I think we might have had trouble moving an RP forward in the past, although now that you've brought this kind of setting up for an RP, I think having defined character roles (captain, engineer, that kind of thing) would help that a lot since a captain character would make a lot of decisions.
Trouble is, deciding who gets what role in that kind of setting. Was that an easy thing to decide on in your experience?
Of course it could be up to the user when creating their character, but small crew having bunches of characters with the same role on a ship seems a bit awkward.