if anyone's interested in an #irc chat about #ttrpg (mostly #osr) and obscure #retrocomputing stuff you could try wilderland.ovh port 6667/6697
also on the web as http://wilderland.ovh:9000 (the lounge. no account needed)
and
http://wilderland.ovh:8000 (convos, inbuilt bouncer, sign up needed)
languages are mostly english and german
(alternately accessible via campaignwiki.org port 6667/6697 or https://talk.campaignwiki.org )
Edit: irc now also in TLS