Daryus:
4 ought to be fine. More would be fine as well.
As to my suggestion above, is there anything we want to say has been established?
Are we building one world? A solar system? What races are already existant? What level of sci-fi are we at? What style?
I really want to avoid making too many unfounded assumptions in creating the world. Are we going to set a hard limit that only what we have established or made canon exists?
1. Okay so should I consider placing an ad or not?
2. Yes, good questions.
--You are not limited to a solar system. I think we should limit ourselves to less than 1/4th of a galaxy, but I'm not limiting to one world or one solar system.
--
No sentient species already exist, but like last time, if you say "such-and-such culture exists" and you don't specify species, they'll be human (as happened last time with the Uglolla and the Waveriders).
3. I'm not ordaining style. I'm fine with a mix of styles. Cute Ewoks on one planet, Xenomorphs on another, pulp heroes with jetpacks and ray guns on another. Except not like that, because Ewoks and Xenomorphs have already been invented elsewhere.
4. Level of Sci-Fi, hmm. I'm going to say:
--Interstellar travel is not uncommon. (Whether it's REALLY common or just not uncommon, whether it's fast or slow or in-between, whether some cultures are way better at it than others and horde those secrets, or everyone's equally good at it, is yet to be determined.)
--Robots exist. Whether they're smart enough to count as people is up to you.
--Computers exist. Whether they're smart enough to be sentient AIs is up to you.
--Genetic engineering exists, and it's better than we can do today. Whether it's "super-amazing" or just "impressive" is up to you.
--Force fields exist. Whether they are common or super-expensive to run for even five minutes is up to you.
--Artificial gravity is capable of being generated. Whether that's common or super-costly is up to you.
--Super-medical-science exists. Whether it's common or something that only millionaires can afford is up to you.
What other questions need to be answered?