Rakore's Spider Werks division, under the training of a mad gnome and a number of dwarven smiths, managed to create a number of flame throwing weapons for both infantry and shipboard use during the War of the Four Winds.

The weapon used jellied oils in a compressed cylinder of brass, and made to very exacting standards. Only the best and finest of metal smiths could make the flame throwers well. Poor knock-offs wound up killing anyone who tried the flame throwers, even if they could get the ingredients right. The extreme degree of precision needed to make the weapons makes them very prohibitive. The danger associated with making the jellied oils is almost as prohibitive.

Various capacity magazines existed for the flame throwers, but the firing mechanisms were essentially the same: an igniter (often made from a liquid-spun flint-lock wheel mechanism), a tubing, and a hand pump. One hand aimed the weapon, while the other pushed a plunger in and out of the weapon. Ingenious engineering allowed for both the in and out pumps of the weapon to expel jellied oils, and the device had a range of about 60ft.

Most magazines were designed for about a minute of continuous operation, and located beneath the weapon for safety reasons. Some versions had back-mounted magazine packs, or supported platforms to hold the fuel. Ship-board versions tended to have extremely protected magazines that could easily be jettisoned overboard or even onto other ships in ship-to-ship fighting. Each pump of the weapon jetted a cup of fuel, at a rate of roughly one cup per second.

The weapons are highly prohibited and controlled, but can sometimes be purchased under special circumstances for about 5,000 silver. They could fire jets of flame out to 60 feet, and weighed nearly 33 pounds with a full magazine for the man-carry versions. A cup of the jellied fuel, roughly one pump of the flame thrower, could run around 200 silver. With 16 cups in a gallon, larger weapons could cost more for fuel than for the weapon itself.

Once the flaming fuel is on a target, it tends to burn for a considerable period of time – up to several minutes even on solid rock or floating on water. Because of this, many flame throwers have found a niche market among undead-hunters.