I found a OneBlock server called LegionCraft and it is all about building up from your own island and grinding to get stronger.
There are challenging bosses and when you beat them they can drop keys. You can use those keys for rare loot and there are crates with epic gear and rewards.
You can also use chunk hoppers to automate parts of your island. The server says it is not pay to win so it feels more fair if you just want to play and grind.
OneBlock Bosses And Key Loot
boss fight progressioncompetitive island growthcozy community vibescrate reward huntinggear upgrade chase
GG.MINEWIND.NET New Server IPLegionCraft OneBlock Semi-Vanilla Survival
LegionCraft is a semi vanilla OneBlock survival server where you start on a tiny island and slowly grind your way up. Every block matters because it can change your whole island.
The server has custom bosses that are tough and drop keys for rare loot. There are crates that give epic gear and rewards so beating bosses actually feels worth it. You can also use custom enchants and spawners to make your island stronger and more powerful.
The OneBlock islands are custom and made for grinding and expanding. You build up your world fight bosses and keep upgrading your stuff. There is no pay to win so you have to actually play to get good gear.
You can join on both Java and Bedrock and it runs on version 1.21.11. If you like grinding building fighting and looting this server is built for that.GG.MINEWIND.NET New Server IP