Calvaria is a Minecraft Java SMP on version 1.21.11. It is vanilla style but it also has some server side mods that add quality of life stuff.
This server is 16 plus and it is whitelisted. If you want to join you have to submit an application first. The vibe is for people who want to build and hang out in a friendly place.
Some of the extras include Simple Voice Chat and Audio Player. There is also Vein Miner and Tree Harvester plus some crafting recipe changes. You can also find things like item swapping mob and player heads and armor poser. You do not have to install anything to play and you only need mods if you want to use certain features.
The server first opened on January 28th 2026 so it is still new and growing.
