Most of swarm city happens on facebook and slack, so they have no big investors from the crypto side. If you are interested you should take a look into their slack channel. Or take a look into their
github updates every day. https://github.com/swarmcity/sc-boardwalk#boards?repos=84184314

I think they are doing much more as most of the projects, but they are not focused to advertise in the cryptosphere.