Can Game Center Be Used To Share More Than Scores?

I’m working on a game where users arrange various object to create a simulation. I’m pretty sure that users are going to want to be able to share their designs, since there will an almost infinite number of possible solutions. I know I’d want to try out other people’s solutions and compare them to mine.

I’ve not used Game Center before, but it looks like it’s mainly focused on sharing scores and accomplishments (at least as far as Unity support goes). I’d need to be able to share the same data that’s written to prefs when a design is saved locally – a few arrays (object positions, rotations, etc.). Of course, users would need to be able to post their designs as well as browse and download others’ designs. Is this possible with Game Center? If not, are there any other alternatives?

Nope.