OP Prison

Mining, ranking up, prestige, cells and gangs

Mine in your rank's mine, sell, and rank up to the next mine.

/mines lists every mine. /sellall sells your backpack (/autosell does it for you).
/rankup (or /rankupmax) moves you up. At rank Z, /prestige starts again with a permanent bonus.
/enchants upgrades your pickaxe. /pickaxe skins changes how it looks.
/cell gives you a private cell to decorate. /gang makes a gang; a high enough gang gets its own mine.

Quests

/quests opens OPPrison's quests: blocks mined (pickaxe enchants count), each mine block, rank-ups and prestige, selling and enchant procs. They pay Prison Tokens. Network quests are behind their own button (/quests network).

The PvP Mine

Richer blocks, and other players can attack you there (combat tag applies). It opens at rank L with 50,000 blocks mined, so nobody new gets farmed. While a rival is nearby (someone outside your gang who can fight you), it pays a risk bonus: double blocks, double tokens and three times the finds; the action bar shows it. With nobody around it pays like any other mine. The PvP Mine quest page counts your fights there.