Gone to Brunei quite a number of times for business. it is a very strict muslim nation like many said. As a foreigner, you are restricted to a certain quantity of alcohol from the airport but can only be consumed in your own room. Not sure whether that has changed but it was like this a few years ago but I am not an alcohol person so never bothered. Most Bruneians party in Miri Malaysia, an hour drive away, where alcohol and ahem actions are plenty. While it is pretty boring, I always stay in Empire, it has its own cinema haha and alot of people go there to see the Proboscis Monkeys which can be done in a day trip. But it is true not tourism is probably not its strongest suit.