A few years ago I was working on a game called The Space Between Us, where players take on the roles of characters from different stories and come together in a crossover setting. I put it down for a few years because life got in the way, but recently I decided to pick it up again.
I published a new version that's got a bit more completeness to it, though it's not perfect yet. I would be honored if you checked it out or even played it.
I'm going to be doing some internal testing on it (by which I mean I'm getting my close friends to play it with me), after which you'll probably see some more changes.