The thing about NextGen is that it's episodic. There might be recurring characters who sort of develop over the course of the 7 series, but ultimately it's rather like The Twilight Zone in space - every week the Enterprise rocks up at a new planet/space encounter and there's a new, self-contained story, almost always presenting itself as a problem followed by a solution. There may or may nor be a sub-plot.
I want a game that emulates this. It would need, primarily, three things:
- A way to randomly generate unique planets/space encounters quickly and easily. (Examples: A large gas giant orbited by a Ferengi space station. A jungle planet populated by ostrich people. A huge space fungus.)
- A way to generate unique problems. (Examples: A disease which makes the sufferer invisible. A Klingon spy. A star that's about to explode.)
- A sub-plot generator. (Examples: An ensign is in love with character Y. The holodeck is malfunctioning. Lieutenant Barclay thinks he's gay.)
The important thing here is, you don't know what the solution to the problem is - not the players and not the GM. You just have a hurdle, and how it gets solved is open-ended, with the GM acting as a sort of ideas arbitrator, deciding what would or would not make sense.
Ideally, there would be some sort of teching the tech pool, whereby the players could spend a finite number of tokens to pull technological bullshit out of their arses, so long as they made it sound sufficiently plausible/amusing/Star Trekish:
Picard: Mr. Data, can't you figure out a way to re-route the manganese sub-particle detector shield to emit caesium rays?
Wesley: Yes, sir, and that might positivise the helium ions and create a mass-resistant vortex to pull us out of the radon nexus!Face it: it would be awesome.