Calculate the AC on a spiky suit of armour. There’s a challenge.
This vintage armour is a real thing, surfaced recently by Retronaut thanks to Malcolm Kick. This is Siberian bear baiting, or perhaps bear hunting, armour. The former is more likely because running around in this leather suit would be awkward at most.
The armour in three parts; a leather jacket, trousers and an iron helmet. The spikes are 1-inch nails, about 3/4s of an inch apart. The nails are held in place by a second layer of leather lining which is quilted into place between the nails.
I imagine the armour would be far more useful in fantasy RPG settings than in real life. Characters spend less time on horseback and heavily armoured characters have already given up any chance of sneaking. Equally, the number of hostile creatures that either attack with bare claws or via constriction can be pretty high.
Would you allow the style in your game? Or is it just silly – even in a fantasy setting.
Via Cyriaque Lamar at Io9.