Sunset Retreat SMP is a seasonal vanilla plus survival server for players who are 18 or older. It is based in the EU and feels really relaxed. The server is whitelisted so it stays safe and chill.
The community is very friendly and mature. People join to escape real life stress and just play Minecraft with other adults. It is easy to talk to others and make new friends here.
The server is mostly vanilla but it has some quality of life stuff. There is voice chat so you can talk in game. There are mob and player heads and a world map called Pl3xMap. Bedrock players can join too which is nice.
There is a diamond economy on the server. Players make shops and trade items and services with each other. The owners are active and they actually play on the server. They care about updating and managing the world.
If you want a calm 18 plus SMP with a vanilla plus feel and a social community this server fits that really well.
