Batman Pub is a nightclub and karaoke located at least 8 kilometers from the city center of Vientiane. I went there with a rented motorbike after visiting another club called Romeo.
Honestly, it is really in the middle of nowhere. To reach it, you'll need to take a dirt road on the last 500 meters, surrounded by nothing but empty fields.
Judging by the look on the staff's faces, I'm sure I was the only foreigner they ever saw. They gave me a real VIP treatment, including serving my 25,000-kip Beer Lao together with an ice bucket
Anyway, it is a rather luxurious venue, housed in a huge Batman-themed mansion with 3 separate areas: An open-air beer garden with live music (almost empty), a karaoke (probably with prostitutes) and a nightclub.
I was there a bit early so it was still quiet. Most customers were young, and they seemed to come from the middle class.
The music was extremely loud EDM and even with ear plugs it felt uncomfortable. Here is the video I took inside:
Overall: To come all the way from the city and to visit Batman Pub alone would not be worth it. But if, on the same night out, you go to other nearby nightclubs such as Thon Kao, Romeo and Inpeng, I think you can have a fun time.
Open every day until 2AM. Phone number: 030 58 80 088
Sorry the only address I could find is in Laotian (from their Facebook: Batman Pub):
ບ້ານ ດົງຄຳສ້າງ, Vientiane, Laos