Grenadoes are metal spheres that fit comfortably in the palm of your hand. Sold in closed padded crates of 6 for 360p (singles cost 80p each). They need to be loaded with fuze and lit before use. Petards are effectively cast iron buckets full of blackpowder which you attach to a structure you want to make a hole in. Costs 600p, taking up 3 inventory slots (huge, heavy). They need to be loaded with fuze and lit before use. Fuze is a quick burning wick. You cut it to whatever length you want, sold in 15m coils in oiled bags,...