I volunteer at a yearly LAN party called The Gathering[1] in Norway, we pull about 5000 participants each year (about 3k of which have desk spaces, the rest are day or week passes without a desk). It's some of the most fun I have each year :3
It's unfortunately lost a lot of the early 2000s charm (which ive only experienced from videos and pictures), but we try our best to keep things local and give the best experience possible for participants :3
[1]: https://tg.no (no English site exists unfortunately)
It's an uncomfortable truth that even TG is failing to pull in participants lately, but LANs don't have the critical role in nerd culture they had in the 2000s. I'm happy it still exists and the board seem to be making some decent attempts at revitalising it for a modern crowd
I attend “The Party” in Aars, Denmark for a few years around 2000. It was at the crossroads of broadband, but got to taste the demoscene vs gamer experience. It was magnificent. There were a real festival atmosphere, and afterwards you’d declare never to attend again - that was, until the tickets were released and you somehow couldn’t help yourself.
Good times.
Historic bit: in the late 90s/early 2000s there was a bit of a trend - and quite some tension - of demoscene parties getting taken over by LAN parties. I believe the Gathering used to be a demoscene party, but completely transformed into a gaming LAN party.
There were also those that tried to be both (I believe Assembly is doing both to this day) or those that kept the gaming out (Mekka/Symposium, which no longer exists, but there's been a followup party called Breakpoint, and later another followup called Revision that still exists).