I think I came back to RTC years later after finishing my PhD and had a go at "Upside-down", but it was still new at that time, and glitchy, and so I had to give it up again. Since then, I got married, got a job, had two kids (whew), and now, finally, my kids are sort of semi-independent and I have time to get back to some of my old hobbies, Dungeon Master included!
So... browsing around I see that I've missed a lot of developments, but it also looks like activity has dropped somewhat. For those who are still here, what's the best custom dungeon to play? I've only ever used RTC, but maybe it's time to play Conflux on CSBwin? I never tried that one, but I did see that a lot of people enjoyed that. In terms of my skill, I'd say I'm fairly adept at DM, but not amazing or anything. Looking forward to any recommendations!

Also, I remember GG had a pretty simple dungeon editor in RTC. I had a great idea for a customer dungeon that was going to be called "Return of the Champions" (continuing the play on Star Wars movie names for this game) and it was themed to be a third part of the DM/CSB story (to make a trilogy), or something like that. It was going to be a dungeon shaped like a giant pyramid having 4 main quadrants, kind of like the junction of ways in CSB. Is there enough interest out there for new custom dungeons, and if so, which clone do you recommend working in? I'm patient enough to learn any coding skills if required.