Lonely planet will reccommend "Angkor what?" pub, cause, they say, that pub give some of its income to a hospital, great habit, but the pub is always full and, being a lonely planet advice, you can be sure you will meet ONLY tourists there. A few meters from the angkor what there is the easy speaking pub, smaller, quiter and, with definitly a better service.
Dress Code: No air conditioning, so...the less you wear, the better!
You need to approach your tuk-tuk driver to show you the place. Its looks like some simple coffee house with dim lighting. You & your pals will probably the only bunch of non-Cambodian there.
Be very careful of those black substance contained in mineral water bottles. You'll drink from shot glasses. If your tuk-tuk guy is an alcoholic, good luck to you.
8-bottle of Angkorian Wine (in 500cc mineral water bott), 3 serving of beef (rare) salad stuffs & some simple local bites will cost only USD6. With lots of fresh vegies too.
The raw beef soak into hot gravy mixture ;) heaven.
Dress Code: Anything...
Well, this is not a typical nightlife activity, but I put it here as you have to get up at night (5:30 am) to do it!!
If you wanna have a magical impression of the Angkor Wat temples, go there before sunrise (which is about 6 am). Besides the peaceful atmosphere (stalls are not open yet) you may enjoy a wonderful sunset behind the temple dome's skyline...
This popular drinks place (Angkor Wat, Angkor WHAT?, U get it? ;-))) is located in an area where there are many similar places already. U get good beers, good ambiance and can seat at the terrace to see people pass by...
Dress Code: Pool Table and satellite TV
Beside Performance House of Grand d' Angkor Hotel, we can also find the special package dinner with traditional dance performances in several places. Like Jasmine Angkor Resto or several places along Vithei Sivutha (Siwatha Road)
Dress Code: Casual
The Dead Fish Tower is a pretty unusual place - it seems to be mainly made of wood with metal roofing which doesn't join up. It mostly stays dry inside in the rain though and gives it a great look. Great atmosphere too. The food is Thai and there's a good selection of drinks including a few cocktails, and Angkor and Tiger beer on tap. Anyway it was my evening hangout for my stay there and I enjoyed it a lot - cheers!
More info and pics at their online ad (listed under website below); the website on their sign in the photo seems to be a joke (there's a website with that address, but it seems to have no connection).
Separated from Grand d'Angkor Hotel, you can find a performance house, which has special package: dinner featuring Cambodian traditional performances. The ticket is USD16** per person
Dress Code: Casual