Tesla Lightning Gun Artillery Steamer

Nothing says Mad Science like giant friggen Tesla coils

The development of the Tesla Lightning Gun began before even the first cylinders of the first War of the Worlds were launched from the red planet. Nikolai Tesla had been experimenting with ways to transfer power without wires (cause that's safe) but when the Martians landed in London, the eccentric Serbian realized that his failed power project could be the key to bridging the ludicrous technology gap. The United States Military took interest but dismissed the project initially as infeasible due to the huge power requirements of such a system and the fact that massive arcs of electric power generally are near impossible to aim, but once the forces inside the great coils of captured Martian electric wire could be tuned to seek out the strange alloy of the Tripods, Humanity finally had a weapon to rival the cruel beams of the Heat Rays.

First only employed in static defenses, Tesla soon was able to miniaturize his lightning gun to the point where it could be mounted on a Holt Steam Tank chassis and distributed throughout the US Army as a much needed force multiplayer when holding unprepared defenses. Even the great Land Ironclad Albuquerque had its fore 7 inch gun replaced with one of these weapons.

In All Quiet on the Martian Front

As befits such an eccentric weapon, the Tesla Lightning gun has some pretty wacky rules in game.