Minecraft with RPG systems is any good?

Server or modded, which is better for rpg based games?

I'm actually trying to do a server for a few friends, which would be hardcore, with custom mobs that also level up, increased difficulty as you get far from spawn, etc.

However, it is SO hard to do, I sometimes think of giving up, lol.

What do you guys think about it?

well both are good, and it is reall good for alot of people that likes grinding im sure its good

I think is good. Hypixel Skyblock e.g