UnderWater Pressure is a server-side mod that adds semi-realistic water pressure. The deeper a player goes underwater, the stronger the pressure becomes. Staying under high pressure for too long results in instant death. Time until death, enabling/disabling the mechanic, and debug mode are configurable via Config. Armor protection against pressure is also available: you can configure single items (e.g., turtle helmet) or full armor sets. Creative and spectator mode players are immune to pressure.