Welcome to sharpnesscraft
We have one regular terrain world and one amplified world. There is also a RPG world where you can't build but there are dungeons, and quests there. PVP is off in RPG. RPG was once nothing but a flatlands map. It is all custom built by the staff. Grief, pvp, and raiding are all allowed in the build world. Towny is a way to protect your stuff by making a town.
We also have heroes which allows you to learn skills and choose classes. You gain xp from mob killing, minining, and pvp depending on the class you choose. . These classes give you certain powers. Towny is our way to protect from grief in the griefing worlds. We have dungeons with bosses. Also loot that respawns every 48 hours.