There are no standard striptease clubs in Liège (Luik in Dutch). There’s an erotic cinema called Midi Minuit (http://www.midiminuitcomplexe.com/) at Rue Nagelmackers 7 with cabins and a sex shop. Centre Manoa (http://www.centre-manoa.com/) located at Quai de la Boverie 58 is a mixed bag of strip shows, erotic massage, and a hostess club.
Belgium does not fall short of swinger clubs, in French usually labelled as clubs libertins or clubs échangistes. And also the Netherlands’ province of Limburg, which is close to Liège, has a few ones with a decent reputation. Those clubs, in Dutch also called parenclubs, can provide good options for a fun night out. Just be aware that in swinger clubs evenings with free entrance for single men are usually restricted. So in most cases you will need to have secured female company already.
When you want to visit a regular strip club during your stay in Liège you will need to drive to a nearby town such as Oreye, where at Grand'Route 132 you can find Club Pasha (http://www.clublepacha.be/). I’m honestly surprised by this lack of traditional strip clubs in Liège. To my humble opinion it seems like a perfect city for a titty bar or two. Hello? Business opportunities!