Trap Generator
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Flooded Tar Corridor
A pillar of light stretches the location. The trap is activated if the beam is broken by a creature or object and causes the dam farther up the corridor to break and unleashes a huge wave of liquid that crashes down the corridor. There's little puddles of the liquid about the area, and a faint dripping sound.
Effect: DC 15 to find, DC 20 to disable
Initiative +1, moves 60 ft. in a straight line each turn. If it enters another creature's space, DC 15 DEX save or washed away by the rapid torrent, but regardless of save you still take damage from the liquid: 16 (2d10) damage. If submerged, after 1+(CON bonus) minutes (min 1) of holding breath your HP drops to 0.
Trigger: light beam, a beam of light activates the trap when broken.
Swinging Spike Wall
This trap is activated when an intruder steps on a hidden pressure plate that makes a spike-covered wall suddenly swing across the target area, impaling anyone caught by it. The walls are covered in stained spikes.
Effect: Targets all creatures within a 10 ft. square area, a spike-covered wall quickly swings out and impales targets, DC 15 DEX save or take 6 (2d10) piercing damage.
Trigger: pressure plate, activates when 20 or more pounds are placed on it.
Countermeasures: A successful DC 15 Wisdom (Perception) check will spot the pressure plate, and wedging an iron spike or other object under the pressure plate prevents the trap from activating.
Destroying Traps
Traps can be damaged and destroyed, sometimes to good or bad effect. Pipes containing fire or poison will rupture and spray over the area, while mechanisms can be rendered inoperable with enough force. Determine the HP and AC of your traps based on the tables below. Sometimes a fragile trap is more dangerous than a resilient one if destroying it will fill the corridor with acid.
| Substance | AC |
|---|---|
| Cloth, paper, rope | 11 |
| Crystal, glass, ice | 13 |
| Wood, bone | 15 |
| Stone | 17 |
| Iron, steel | 19 |
| Mithral | 21 |
| Adamantine | 23 |
| Size | HP (Fragile) | HP (Resilient) |
|---|---|---|
| Tiny (bottle, lock) | 3 (1d4) | 4 (2d4) |
| Small (chest, lute) | 6 (1d6) | 12 (3d6) |
| Medium (barrel, chandelier) | 4 (1d8) | 19 (4d8) |
| Large (cart, 10x10 ft. window) | 7 (1d10) | 37 (5d10) |
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