There are some screens and it looks like video gaming equipment in the lounge! It looks like a standard rec room, but a futuristic one. However, there is no electricity. It'll need to be reconnected for any of that stuff to work.

There are no such numbers on the walls. It looks like these people navigated this space in another method, or maybe the designers of this ship were just really bad at planning for strangers to be on board. But there is the constant thrum of that sound beneath you . . . constantly . . . so you can likely guess there's at least a floor beneath you. Maybe.