SinisterPrison is a Minecraft Prison server founded in late 2013, built around balanced, progression-based gameplay. Advance through rankups and prestige unlocks, with prestiges offering individual mines and perks (weekly and permanent). Features include custom pickaxe upgrades with right-click upgrading, a custom token integration, player gambling systems, and an island system with a personal mine. The server also offers balanced PvP with custom hit detection, a custom anticheat, crate integration (crates, lootboxes, keys), and an optimized environment targeting constant 20 TPS.