I found a newer server that is built around a custom tech and magic modpack and it is meant to last a long time. The main vibe is role play and RPG style survival with a big community focus.

Players get a lot of choice in how they play because of the origins setup. You pick things like a race and class and magic alignment and a background plus a second class. There are tons of options so it is easy to make a unique build and grow stronger over time with the skill system.

The tech side is based around create so people can build factories and trains and make big projects. There are also options for players who do not want to be magic users so you can still fit into the world.

Exploring sounds like a huge part of it with lots of dungeons and structures and scary creatures across the realm. You can claim land and build kingdoms and factions and guilds using the claim and colony tools. It is a keep inventory server and it is less than two weeks old.