Weighted Combination Lock


A combination safe sits in the back of the closet.

Mechanical Trap

The combination is weighted to move slightly past each number and is rigged to explode if the combination if off slightly.

If the safe is cracked, which requires a DC 14 Intelligence (Investigation) check, the weighted dial will move it slightly past the correct combo. When the final combination is put in and the safe opened, instead, explosives directed outwards will go off. All targets in a 15′ cone in front of the safe take 6d6 fire damage, with a DC 14 Dexterity saving throw halving this damage.

If the dial is examined, a DC 16 Intelligence (Investigation) check reveals that the dial is weighted. When cracking, a DC 14 Dexterity check must be made to get the right combo on each rotation. There are normally three digits in the combination.

The explosives can only be disarmed once the safe is opened.



Categories: 5e, Dungeons and Dragons, mechanical | Tags: , | Leave a comment

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