The Pen is a classic prison server that is trying to feel like the older days. It is barebones and grindy and you do not start out rich. You begin with basic tools and leather armor and you work your way up.

The main loop is mining then smelting your ores then moving through PVP zones to sell at the Commissary. It is not an instasell kind of place and you are expected to fight for your progress sometimes.

There are ranks from A through H then Parolee then Citizen. Once you hit the top you can prestige for special rewards. You can also do quests for extra cash or special items.

Guards are a real part of the server. They help protect new players and enforce contraband. Swords and potions are illegal and guards will PVP you if they catch you with them. If you act up you can even end up in solitary confinement.

Making money is not just mining. There is custom fishing and you can rent a cell or a plot to store stuff build and run a shop. There are special custom plants that are illegal in the prison and you can grow them for profit if you do not get caught. You can also use the auction house sell to other players and put bounties on enemies. There are parkour challenges around the prison too.