How many can be in a group and is there age limit.

There are drink machines in the back

There is no age limit either way as far as I know. I don't think there is a limit on groups as well. Im sure there is a limit on the number of people in the building concerning the fire code. It is fun for all ages. I took my kids there for the first time today. It was packed but we had no problem playing what we wanted to. The only down side is there is no food or drink. I think there is a water fountain.