I think there was an old man cave thread a few years ago but I wasn’t able to find it so I’m starting a new one. My parents basically have a fully functional sports bar in their basement in Toledo so it’s always been a goal of mine to have my own cave/bar. I’m super passionate about all things tiki so I took that route instead of the sports bar route for mine but I still love seeing all the sports bars and basement pubs that people create. (The panel with the portholes hangs like a picture frame over the TV so I just take the panel down for Buckeye games btw).  I built mine with a buddy over the pandemic in the guest house in our backyard. Full wet bar and bathroom in there as well. 
 

Here’s mine: 

Hoping to see some of yours in this thread too. Always love seeing what people create!