Novama
I have destiny. I'm missing the latest dlc's though.
3 way faction conflict for fate of world/galaxy could work if you have enough people. I find that the easiest way to ensure there are people is to reduce the 'official' sides characters know about. then later introduce the 3rd faction and allow the players to gravitate to it as they feel. However, the 3rd faction is met to play more of a supporting role in encouraging or instigating one of the other factions into the lead or into a trap/failure.
I don't have any dlc yet. I need to get that i packed up my ps4 right after the first one came out- and i just unpacked and haven't gotten around to it yet. The joys of getting married and moving :/
If it was a small group have them all get stranded on a planet and need to survive too- maybe the fog thing is coming.
I have a hard time believing we could actually make this a huge rp- mostly because i think the bigger the rp the more it will fail cause you need to wait for people to post. :/