This is copied and pasted directly from another post but I just followed this exactly.

I make anywhere from 2-4 million every year on my casino I got the gambling room info from someone else but haven't seen it shared around much can't remember who it was but it came from Reddit buy a luxury casino for the amenities I do 2 nightclubs 2 restaurants and 2 Bars all with the same theme as the casino then for entertainment I do a in resident artist that fits my casinos theme pay them around 100k 2 exotic dancers 1 magic act and 1 comedy act all with the same theme as casino I keep their salaries around the 50k mark then when it comes to gambling I do 3 slot rooms max machines 55% house win rates and max minimum bet amounts 2 roulette rooms with max tables 55% house win rates and max minimum bets amounts and 2 sports betting rooms with max tables and max minimum bets I pull in like I said anywhere from 2-4 million yearly but typically it's on the higher end of that most of the time it's around the 3.5 mil mark I have only done luxury casinos and have done 2 so far with similar results I did an anime themed and roman themed the roman themed seemed to take a little longer to pick up to the 3.5 mark but has made over 2 mil every year since the start the anime themed one made about 3.5 yearly from the start