Boulder trap

The Boulder Trap is a trap that can be naturally found in the Underground and Cavern layers, it consists of a single Boulder in the ceiling, supported by six (2x3) Active Stone Blocks that are wired to a Pressure Plate. If a player were to step on the Pressure Plate, then the Boulder would fall and damage the player.

The Pressure Plates are coloured to match the environment they spawn in, making them harder to notice.

On the, between 3-5 Boulder Traps can be found in Dead Man's Chest areas and will be activated once the chest is opened in an attempt to kill the player, along with several Dart Traps and possibly even Explosives. In addition, the Pressure Plate on the will disappear upon being mined or once the trap is activated.

Tips

 * In, Boulder traps should be avoided at all costs, considering the deadly force of 280 damage on average.
 * Players can detect Boulder traps "in the wild" by wielding a mechanism item such as a Pressure Plate, by carrying a or its upgrade  or by using a Dangersense Potion. All except the last will allow the player to view placed wires, and the vertical wire with its 2×3 rectangle atop it is quite distinctive. Once detected, there are two basic ways to disarm them:
 * If approaching from above, the player can mine their way toward the top of the trap, and use a pickaxe to break the boulder from outside the sealed chamber.
 * If approaching from below, the player can use a pickaxe to break the pressure plate that activates that trap.