Ficken3000, the name is the program. Gay cruise bar with a large dark room in the basement. Upstairs all are welcome, in the basement it's men only.
Only safe sex is allowed. You can leave your jackets, coats and, bags at the coat check. Which is always a good idea in such places. Especially on Tuesdays and weekends and generally when it is very crowded.
Open from evenings until early mornings.