It's something to do with Cincy Beer Week. It used to be that all the local breweries would do a collaboration beer each year. Since more and more breweries started opening, they decided to split into groups. Each group made a collab, and they're doing the draft event to determine which one goes into wider production. Or something like that.
As far as other places to go, Rhinegeist and Christian Moerlein are only a few blocks apart (albeit in one of the sh!ttier parts of town). Madtree is one of my favorites. If you're into sours, try Rivertown.
On the KY side of the river, Braxton is worth checking out. Or visit the Party Source...they have a taproom (Ei8ht Ball) in the back that also does a rare keg tapping on Mondays.