Ah...what games are on the schedule?
We have to invent our own. There's (or will be) the swimming bubble, a big pool of warm water held in place by surface tension and jets of air. We'll need to discover how to swim in that without drowning.
Then there's the flying court, where we can don wings à la Robert Heinlein's description, except in a smaller space. Then there are some smaller spaces along the axis for as yet undetermined activities.
I'm sure we'll figure something out.