I had various interested experience in the past couple of years since I started using hostels. I'll make a little list:
Stayokay (Netherlands), I tried several of them, they do have a good free breakfast but if you are looking for hot time, go somewhere else.
Kingkool (The Hague). Interesting Male dorm, nice showers, close but the floor reflect perfectly what is going on in the next stall. No one had noticed that apparently as all the guys were wanking ehehe. But be aware, if you are above 35 you will be the oldest of the building, and by far.
Louvre Youth Hostel (Paris) individual shower, no chance of fun also very cold. Male dorm was fun I found on Grindr a cute guy who I fucked in the just mentioned shower

plus one morning a guy was wanking very loudly. (Age restriction Max 35). The hostel is super close to one of the best cruising park I have ever been. Good in summer.
Gay Hostel Berlin (Berlin). Is a gay hostel for under 38. It is fun, I loved it, but is not that kind of fun you have in straight hostel.
Planning Munich, but I can't find anything interesting. Any suggestions are more than welcome
