Trap Generator
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Spiked Net Trap
An enemy in disguise attempts to direct the PCs into the trap by lying about where they need to go and triggers the trap when the PCs get close, which causes a camouflaged net to fall on any creature caught below. The ceiling is covered in stalactites or vines to conceal it.
Effect: Targets all creatures within a 10 ft. square area, DC 13 STR save or become restrained and take 23 (4d10) poison damage, half on save
Trigger: enemy, an enemy in disguise directs the PCs into the trap.
Countermeasures: A successful DC 15 Insight check can tell that the enemy is lying. A successful DC 15 Dexterity check using thieves' tools disarms the trap.
Acid Fog Trap
This trap is activated when an intruder steps on a hidden pressure plate that causes hidden pipes to spew out an acid fog, obscuring the area and burning anyone inside. The area is a little foggy and there's exposed pipes.
Effect: Targets all creatures within a 10 ft. square area, heavily obscures sight and each turn in the fog deals 7 (4d10) acid 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. A strong gust of wind (at least 10mph) will disperse the fog.
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) | 6 (2d4) |
| Small (chest, lute) | 6 (1d6) | 10 (3d6) |
| Medium (barrel, chandelier) | 4 (1d8) | 17 (4d8) |
| Large (cart, 10x10 ft. window) | 8 (1d10) | 26 (5d10) |
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