bigandtoasty

A medieval, early to mid game defense before electricity is accessible. It would be made using iron and could be put under the first rank of advanced engineering along with the forge to get you started on more fun traps than just spikes and barbed wire. You would have to fill it with the fuel first (either bottles of oil or a crafted "ammo" specifically for the cauldron) and then activate it to tip it over, raining fire on anything below leaving something similar to the fire molotovs leave only bigger and maybe more damaging as to make it worth building.