Homestuck and original roleplay ideas

Hey, I'm still looking for roleplay partners, and I have a few ideas now. PM me if you like any of them:

#1 - Homestuck, alternate universe (Space Opera-stuck?)
Somewhere right outside the borders of the Alternian Empire (which has recently spread still further and now includes the planet that its inhabitants called Earth), there is a space station - an independent floating city of sorts, mostly populated by transients, but increasingly a permanent home to a number of trolls who narrowly escaped culling and various aliens from planets conquered by the Condesce's army. A number of these refugees (including but not limited to some people who the roleplayers might already know) have risen, some at a surprisingly young age, to become important in running the station - defending it, enforcing its laws and keeping its larger and much more powerful neighbors - including the Alternian Empire - appeased enough not to make problems for it in the first place. However, all of this, especially the last part, becomes a lot less easy as things become less stable on Alternia and elsewhere. I imagine this roleplay will involve both original and canon characters, and, depending on the preference of the other roleplayers, it could cross over with other sci-fi series.

#2 - Original, modern/urban fantasy
Guardian angels and demons are the closest that humans have been able to conceptualize them as. Agents of two different sides, sometimes conceptualized as good and evil, sometimes as order and chaos, and sometimes as some entirely different axes altogether. These agents attach to individual people, often troubled individuals who have the potential for both incredible and terrible things, taking on human identities and lives as friends, mentors, and even family and seeking to either stabilize the people they're assigned to or break them down. Sometimes, one agent succeeds in destroying their counterpart. Sometimes, the subject of their efforts dies prematurely. In any case, once these creatures' missions are accomplished, they're expected to return to their respective realms to be recycled into another identity for another mission. One thing many of them on both sides agree to is that they don't want to go back. There are small communities of these (as far as the system is concerned) obsolete creatures, possessing magical powers and often distinctive physical appearances to varying degrees, living on earth. Most members of this community live fairly ordinary lives by human standards. Some of them, though, think that being a supernatural detective, or a subway conductor to another dimension, or a member of another profession that involves their abilities is worth the risk of running into the bloodthirsty hunters sent out by both sides to recapture or kill rogue agents... as well as the other forces, human and otherwise, that would seek to use or destroy them.

#3 - Original, sci-fi/space opera (Trigger warning: This roleplay would involve themes of ableism/anti-disability prejudice and serious... I guess one might say sapient rights abuses)
Long prior to the start of game, one of the more militarily advanced human colonies unleashed a devastating biological attack on a newfound settlement on a nearby moon created by amphibious humanoid aliens. In the aftermath of the attack, which caused huge numbers of birth defects in the subsequent several generations, the alien colonists became virulently ableist and obsessed with maintaining genetic purity, and anybody identified as or suspected of having genetic or, eventually, other illness was segregated off into a separate dome city, if they weren't simply killed first. Here they were made to do at best grueling and often completely pointless labor, overseen by criminals and disgraced members of the nobility or military. In recent years, however, the ideological force behind this oppression has gone away, and the system has continued more because it's part of the infrastructure than anything else. The people running the dome also make a small profit off of selling some of their charges to traffickers of sapient beings and other unscrupulous people. Disgusted by this situation for very personal reasons and aimless in life, an expatriate from the colony forms her own ragtag crew of "traffickers" to buy off as many of these discarded people as possible and take them to the freedom and relative safety of other worlds to start new lives. In between runs, they have to pick up jobs - not all of them strictly legal - in order to make enough to keep their operation going. Many of the people they end up rescuing or otherwise encountering on their runs end up dragging the crew into much bigger things than they would've expected, including assassination plots, people being created as or modified into living weapons, and plans to overthrow existing planetary governments.

Stylistic things:
-1X1 preferred, but would be open to trying something with 2 other people.
-Fast-paced, informal chat/script or short paragraph style.
-Playing as a number of characters at once is preferred, given the potential scope of these stories.
-Please be committed to the roleplay once things get going, or at least let me know if you need to stop.
-Hard limits for me are gore (blood doesn't count), detailed medical or surgery scenes, and explicit/"on screen" sex.
-I don't know if anyone else does this, but I'm open to sharing characters, canon or original.
-I don't do a whole lot of plot or character planning at the outset, and prefer to see where things go.

I'm interested in idea 3, it seems pretty well thought out. To me it seems a bit through like Joss Whedon's "Firefly" in that there would be a lot character focus.

Cool! PM me, and let's talk about it further!

All very interesting ideas -- though I too find the third one to be potentially the most appealing. Just posting here to save this thread.