I found a small closed beta vanilla Java server that wants a few committed players or small groups. It is survival focused and the progress is meant to take a long time.
The main point is testing long term stability while you actually play and progress. They want people to notice weird behavior soft locks or crashes and also see how things interact with custom code. Some mechanics are kept secret so you can discover them.
It is whitelist only with a small tester pool and it may be a bit harder than normal survival. The server is hosted in US West but they said anyone can join if they are fine with occasional instability.
To get in you have to do a short voice chat intro before you get whitelisted. Scheduling can take a bit since it depends on when both sides are free.
Closed Beta Vanilla Java Test Server
GG.MINEWIND.NET New Server IPFresh Vanilla World Looking For Players
This is a fresh vanilla world on 1.21.11 that was made by two friends who wanted a simple place to play.
They are trying to reach 10 members and they want people who are in Europe.
The rules are basic. No cracked clients and no cheating clients. Stuff like a minimap mod is allowed but they do not want other mods.GG.MINEWIND.NET New Server IPEuMC Vanilla Anarchy No Rules Ever
EuMC is a vanilla anarchy server with a tiny community and it is made for people who want no rules at all. There is no anti cheat so it is really anything goes.
It runs on 1.12.2 but you can join on any version. The server is small with a 20 player cap for now and it might change if more people show up.
There are a couple weird issues you should know about. Some chunk related stuff can kick you if you use Meteor client. Also no fall does not work so if you are flying and try to land it can kill you.GG.MINEWIND.NET New Server IP